CN101074988A - Method and apparatus for realtime and on-line monitoring meter error of high-voltage mutual inductor - Google Patents

Method and apparatus for realtime and on-line monitoring meter error of high-voltage mutual inductor Download PDF

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CN101074988A
CN101074988A CN 200710130122 CN200710130122A CN101074988A CN 101074988 A CN101074988 A CN 101074988A CN 200710130122 CN200710130122 CN 200710130122 CN 200710130122 A CN200710130122 A CN 200710130122A CN 101074988 A CN101074988 A CN 101074988A
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error
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曹锐
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Youteaoke Electronics TECH Co Ltd Taiyuan City
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Youteaoke Electronics TECH Co Ltd Taiyuan City
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Abstract

A method for on-line monitoring the metering error of high voltage mutual inductor in real time includes applying precise metering instrument to simultaneously on-line detect its current value and voltage value of secondary side of high voltage mutual inductor in real time, using ratio of two value as secondary load value of said mutual inductor and calculating out metering error of said mutual inductor according to known mathematic formula. The detection device designed as per said method is also disclosed.

Description

Meter error of high-voltage mutual inductor realtime on-line monitoring method and monitoring device
One. technical field
Meter error of high-voltage mutual inductor realtime on-line monitoring method disclosed by the invention and monitoring device belong to high pressure (as 10KV and more than) detect and field of measuring techniques, what be specifically related to is a kind of real-time online, real-time online (for a long time) monitoring method of true and accurate monitoring meter error of high-voltage mutual inductor and the monitoring device that is designed to this method.
Two. background technology
In electric system was produced, electric energy is its final products, and was very important to the metering of electric energy.Electric power meter is unique instrument that electric energy is measured, and is that generating, power supply, electricity consumption three parts are used for the only resource for the electricity consumption trade settlement.Electric power meter accurately whether, be directly connected to send out, for, electricity consumption three parts's economic interests.Therefore, the relevant metrological legislation regulation of country must regularly be carried out field test to the accuracy of electric power meter.Electric power meter is made up of voltage transformer (VT) (PT), current transformer (CT) and electric energy meter usually.Thereby the error of electric power meter is made up of the error of PT error, CT error, error that the PT secondary voltage drop is caused and electric energy meter.Wherein, PT error, CT error are called electric energy metrical primary circuit error, and the error of the error that the PT secondary voltage drop is caused, electric energy meter is called the electric energy metering secondary error.
Owing to economically particularly safety on reason, do not allow in the High Voltage electric line of charging operation, to insert the micron order voltage transformer (VT) that needs special reinforced insulation temporarily and compare, thereby can only adopt the on-the-spot way check PT error that has a power failure at present with the on-the-spot PT that moves.Promptly when system blackout, carry PT power failure checkout equipment to in-site measurement PT error.Because PT power failure checkout equipment is made up of very heavy stepup transformer and standard etc., and need coordinate power off time with the parties concerned, can't accurately obtain the measuring error under the true running status of PT when having a power failure measurement, thereby the on-the-spot power failure method of inspection is time-consuming, effort and not too accurate in addition.
Thereby, study a kind of method of testing that can the real-time online measuring meter error of high-voltage mutual inductor and demand urgently and look forward to.We study successful this method a kind of brand-new meter error of high-voltage mutual inductor method of testing are provided, the meter error of high-voltage mutual inductor online in real time that can't finish of can finishing is over measured, and this method is simple, can measure meter error of high-voltage mutual inductor exactly.The proving installation of Development and design success according to the method, solved the difficult problem that the electric energy detection field can't be monitored meter error of high-voltage mutual inductor for a long time, the electric energy detection that yet is through with field does not have the history that the meter error of high-voltage mutual inductor proving installation is arranged always, and this is innovative thinking and creative invention.The technical characterstic of " meter error of high-voltage mutual inductor realtime on-line monitoring method and monitoring device " of the present invention is: this new detection method is implemented under high pressure (more than 10KV) forceful electric power, detection under high pressure, the forceful electric power or metering can propose comprehensively detection or measurement technology undoubtedly, more stern challenge, need the electric energy metrical versatility to rise to the level that high pressure, forceful electric power standard and safety etc. require.This new " meter error of high-voltage mutual inductor realtime on-line monitoring method and monitoring device " of the present invention energy online in real time, long-term directly accurate monitoring meter error of high-voltage mutual inductor; can protect economic interests better, also contribute for the scientific-technical progress of electric utility for the electricity consumption both sides.
Three. summary of the invention
The objective of the invention is: the technology that this meter error of high-voltage mutual inductor realtime on-line monitoring method and monitoring device are provided to society, for accurate means that a kind of brand-new monitoring meter error of high-voltage mutual inductor is provided for electricity consumption both sides and pick-up unit conveniently, also do some work for the scientific-technical progress of electric utility.
The content of technical scheme of the present invention comprises two parts: the technology contents of first meter error of high-voltage mutual inductor realtime on-line monitoring method, it two is technology contents of meter error of high-voltage mutual inductor real time on-line monitoring device.
About this meter error of high-voltage mutual inductor realtime on-line monitoring method, it is the method for real-time online, true and accurate monitoring meter error of high-voltage mutual inductor, the characteristics of this method are: the monitoring that the first is implemented under high pressure (more than 10KV), forceful electric power situation, it two is monitorings that real-time online is implemented under high pressure, forceful electric power situation for a long time.Described meter error of high-voltage mutual inductor realtime on-line monitoring method is: the metering or the detecting instrument that adopt precision, measure or detect the magnitude of voltage and the current value of high voltage potential transformer secondary side simultaneously at high voltage potential transformer secondary side real-time online, the ratio of two values is high voltage potential transformer secondary load value, the metering of the precision of described employing or the implication of detecting instrument are: one, under high pressure (more than 10KV), forceful electric power situation, meter error of high-voltage mutual inductor is implemented the voltage and current information of the secondary side of monitoring high voltage potential transformer; Its two, under high pressure, forceful electric power situation, meter error of high-voltage mutual inductor is implemented the long-term monitoring of real-time online, monitor the voltage and current information of its high voltage potential transformer secondary side.In other words the precision of described employing metering or detecting instrument must have performances such as high pressure resistant, anti-forceful electric power (big electric current), real-time online use for a long time, measure of precision is satisfactory, safe operation meets the requirements, and could monitor meter error of high-voltage mutual inductor.Mathematical formulae by known strictness calculates meter error of high-voltage mutual inductor then, and described mathematical formulae is:
f U＝{f 0-(I X/I H)[(f 0-f H)cos( X- H)+0.0291(δ 0-δ H)sin( X- H)]}(％)，
δ U＝{δ 0+(I X/I H)[34.38(f 0-f H)sin( X- H)-(δ 0-δ H)cos( X- H)]}(′)，
In the formula: f U, δ URatio and the angular difference of-tested high voltage potential transformer under the actual motion load;
f 0, δ 0-unloaded ratio and the unloaded angular difference measured in advance;
f H, δ HRatio and angular difference under-the rated load measured in advance;
I X-actual motion load is the secondary current of high voltage potential transformer down;
I HSecondary current under the-rated load measured in advance;
XThe angle of impedance of-actual motion load, i.e. phase angle between high voltage potential transformer secondary voltage and secondary current;
HAngle of impedance under the-rated load measured in advance;
(%)-and result of calculation: percentage;
(')-result of calculation: unit is for dividing.
According to above-described meter error of high-voltage mutual inductor realtime on-line monitoring method, technical characterstic also has: described this meter error of high-voltage mutual inductor realtime on-line monitoring method of a. is: adopt and be provided with the metering of precision or magnitude of voltage and the current value that the detecting instrument real-time online measured or detected the high voltage potential transformer secondary side simultaneously at the high voltage potential transformer secondary side, sample voltage value must be at the secondary side root, and current value can detect by any place before the load of secondary side.B. adopt the metering of at least one (also available two) precision or detect voltage and current instrument or by or error real-time, error free with its detection accessory (as an instrument and detection accessory thereof simultaneously in the secondary side metering or detect voltage and current information) can ignore with the mode of wire transmission or wireless transmission/receptions the voltage and current information aggregating of sampling or detection in the metering or detecting instrument of its precision, and this detecting instrument is provided with calculation mechanism with by mathematical formulae:
f U＝{f 0-(I X/I H)[(f 0-f H)cos( X- H)+0.0291(δ 0-δ H)sin( X- H)]}(％)，
δ U={ δ 0+ (I X/ I H) [34.38 (f 0-f H) sin ( X- H)-(δ 0-δ H) cos ( X- H)] ('), calculate meter error of high-voltage mutual inductor.Perhaps, real-time, the error free or error of the metering of c. precision or detecting instrument can ignore press mathematical formulae for other calculation mechanism (computing machine or calculation mechanism in this way) in the mode of wire transmission or wireless transmission/reception sampling or the voltage and current information transmission that detects:
f U＝{f 0-(I X/I H)[(f 0-f H)cos( X- H)+0.0291(δ 0-δ H)sin( X- H)]}(％)，
δ U={ δ 0+ (I X/ I H) [34.38 (f 0-f H) sin ( X- H)-(δ 0-δ H) cos ( X- H)] ('), calculate meter error of high-voltage mutual inductor.
According to above-described meter error of high-voltage mutual inductor realtime on-line monitoring method, technical characterstic also has: described real-time, the error free or error of a. can ignore with wire transmission mode to the metering of its precision or the method on the detecting instrument be sampling or the voltage and current information aggregating that detects: the metering of described precision or the detection accessory of detecting instrument and cable thereof have fixing known detection error amount and with its deduction, in metering, become error free, this just require its detection accessory be fix and fixing known detection error amount arranged.Perhaps, described real-time, the error free or error of b. can ignore in the mode of wire transmission or wireless transmission/reception to the metering of its precision or the method on the detecting instrument be sampling or the voltage and current information aggregating that detects: make the metering of this precision or the sampling of detecting instrument detection accessory or the voltage and current information that detects after digitized processing error free or error can ignore be pooled on the metering of this precision or the detecting instrument or/and in other calculation mechanism with the method for wire transmission or wireless transmission/reception.The advantage and the benefit of digitizing that Here it is transmission.
According to above-described meter error of high-voltage mutual inductor realtime on-line monitoring method, technical characterstic also has: the metering of described meter error of high-voltage mutual inductor precision that realtime on-line monitoring method adopts or the system of selection of detecting instrument are: adopt described meter error of high-voltage mutual inductor realtime on-line monitoring method design, produce meter error of high-voltage mutual inductor real time on-line monitoring device, this device main body partly includes the precision metering or detects the mechanism and the structure of voltage and current information, mechanism and structure about metering or detection voltage and current instrument, should there be all available existing public technology contents of which mechanism and structure to solve and design, no longer stating more.This apparatus features is: the monitoring that the first is implemented under high pressure (more than 10KV), forceful electric power situation, it two is monitorings that real-time online is implemented under high pressure, forceful electric power situation for a long time.Described this device must comprise or have at least one or more than one (as two or three etc.) can be real-time, error free or error can detect the detection accessory of voltage and current information with ignoring, described detection accessory be the test side or/and extension set: this device of a. is or/and have at least one metering or the test side and the cable thereof of detection voltage and current information.In metering, become error free or error little of can ignoring, this just requires test side and cable thereof that fixing structure and fixing known detection error amount must be arranged and with its deduction, become error free or error little of ignoring.Or/and, b. this device is or/and have at least one wire transmission or/and the mechanism of the voltage and current information that wireless transmission measured or detected, this mechanism forms by electronic mechanism, this mechanism is and this device main body part having that cable wire connects or get in touch by wireless transmission/reception by transmission, these mechanisms are arranged on the branch body portion outside this apparatus main body part, constitute the extension set of this device, this extension set is made up of housing and interior electronic mechanism thereof.Described electronic mechanism is made of assemblings such as multiple electronic component, device, assembly, parts, integrated circuit block, electronic circuit and software programs in this way.C. described voltage and current information sampling or detection is chosen as by the calculation mechanism that mathematical formulae calculates meter error of high-voltage mutual inductor: the instrument or the meter error of high-voltage mutual inductor real time on-line monitoring device of precision metering or detection voltage and current information are provided with calculation mechanism and structure, this calculation mechanism comprises micro computer or microprocessor and software program and auxiliary circuit, this calculation mechanism can solve and design with existing public technology contents, no longer stating more.Or adopt other computing machine or computing center to be its calculation mechanism.
According to above-described meter error of high-voltage mutual inductor realtime on-line monitoring method, technical characterstic also has: the concrete structure of described meter error of high-voltage mutual inductor real time on-line monitoring device is: described this device of a. is or/and at least one of band detects the structure of the test side of voltage and current information is: detect the cable that input end connects and the voltage and current sample detecting end of end thereof with this device, the union end of the high voltage potential transformer secondary side line of the direct in this way and three-phase of its sample detecting end.B. described this device is or/and the split of the voltage and current information that at least one wire transmission of band detects or branch machine mechanism, the detailed structure of the mechanism of the voltage and current information that wire transmission detects between its extension set and this device is:--the input circuit function connects composition to the mould/number conversion circuit of the sample circuit of voltage and current information-controller control for transmission circuit and transmission yarn--interface circuit and connector--, the sample unit of its sample circuit can be arranged on tested high voltage potential transformer secondary side voltage, current information sampling position, its sample unit in this way directly and the union end of three-phase high-voltage voltage mutual inductor secondary side line, to the moving connector of interface circuit, constitute the wire transmission extension set of this device, mechanism's union end is gone in the output that its moving connector is this wire transmission extension set, and it decides the input circuit that connector constitutes this device voltage and current information.C. described this device is or/and the split of the voltage and current information that at least one wireless transmission of band detects or divide machine mechanism, and the detailed structure of the mechanism of the voltage and current information that its extension set and wireless transmission/receptions between this device detect is: mould/number conversion circuit, transtation mission circuit and the transmitting antenna function thereof that the sample circuit of voltage and current, controller are controlled connects the extension set of the voltage and current information of composition wireless transmission detection.The sample unit of its sample circuit can be arranged on tested high voltage potential transformer secondary side voltage, current information sampling position, and its sample unit in this way directly and the union end of three-phase high-voltage voltage mutual inductor secondary side line.This device also must corresponding be provided with the mechanism of the voltage and current information of wireless receiving detection, the mechanism of the voltage and current information that described wireless receiving detects is arranged on this apparatus main body part, connected and formed by the receiving circuit of voltage and current information and receiving antenna thereof, amplifying circuit, input circuit function, its input circuit promptly is the input circuit of the voltage and current information of this device.D. this device or the wire transmission that connects with computing center, or the structure of wireless transmission/reception contact is: this device is or/and be that wire transmission connects with a computing center at least, or the structure of the contact of wireless transmission/reception is: the concrete structure of the mechanism of the voltage and current information that the wire transmission between this device of i. and the computing center that connects detects is: the structure of the mechanism of the voltage and current information that described this device wire transmission detects is connected one by one and is formed by digital processing circuit-wire transmission interface circuit-transmission yarn; Perhaps, the concrete structure of the mechanism of the voltage and current information that detects of the wireless transmission between this device of ii. and the computing center that gets in touch/reception is: the structure of the mechanism of the voltage and current information that described this device wireless transmission detects is connected by digital processing circuit, wireless interaction interface circuit and transmitting antenna function thereof to be formed; The computing center that gets in touch with this device must correspondingly be provided with the mechanism of the voltage and current information of wireless receiving detection, the mechanism of the voltage and current information that described wireless receiving detects is arranged on computing center, is connected and is formed by voltage and current message pick-up antenna, wireless interaction interface circuit function.The extension set of not getting rid of extension set that this device has the test side of detecting voltage, current information, voltage that wire transmission detects, current information simultaneously, voltage that wireless transmission detects, current information is the structure of several (as three kinds each) altogether.Do not get rid of yet this device simultaneously also and wired connection of other several (as two or three) calculation mechanism (as computing center) or/and radio contact.
According to above-described meter error of high-voltage mutual inductor realtime on-line monitoring method, the detailed technology characteristics also have: the detailed structure of described meter error of high-voltage mutual inductor real time on-line monitoring device is: 1). described this device is or/and at least one of band detects the detailed structure of the test side of voltage and current information is: the detection cable and the sample detecting end of this test side have fixing structure, if any fixing build-out and test side of fixing and fixing electrical structure parameter etc., voltage is being detected in this test side like this, the detection error that causes during current information be fix with known, can be with its deduction in detection, in metering, become error free or error little of ignoring.2). described this device is or/and the extension set of the voltage and current information that at least one wire transmission of band detects, and the detailed structure of the mechanism of the voltage and current information that wire transmission detects between its extension set and this device is: mould/number conversion circuit, photoelectric isolating circuit, differential output circuit, transmission circuit, difference input circuit, photoelectric isolating circuit, input circuit that the structure of the mechanism of the voltage and current information of the described wire transmission detection of a. is controlled by sample circuit, controller connect one by one and form.Perhaps, the structure of the mechanism of the voltage and current information of the described wire transmission detection of b. is connected one by one and is formed by mould/number conversion circuit, electrical-optical conversion interface circuit, Transmission Fibers, opto-electronic conversion interface circuit, amplifying circuit, the input circuit of sample circuit, controller control.2 described structures of above a, b all have digitized processing mechanism, and error free then or error little of being pooled to the voltage, the current information that detect on this device with wire transmission with ignoring.Perhaps, the structure of the mechanism of the voltage and current information of the described wire transmission detection of c. is connected one by one and is formed by digital sample circuit, digital amplifying circuit, transmission circuit, interface circuit, digital input circuit.Perhaps, the structure of the mechanism of the voltage and current information of the described wire transmission detection of d. is by digital output end--and wire transmission cable-digital input end constitutes.2 described digital transmission structures of above c, d directly error free or error little of being pooled to the voltage, the current information that detect on this device with wire transmission with ignoring.The electronic circuit spare design that each circuit described in above a, b, c, the d all can be sold with existing public technology contents and public merchant and making is as long as they can finish or realize all can using or adopt of each circuit function.3). described this device is or/and the extension set of the voltage and current information that at least one wireless transmission of band detects, and the detailed structure of the mechanism of the voltage and current information of wireless transmission/receptions detection is between its extension set and this device: mould/number conversion circuit, digital signal processing module, wireless data sending communication module and transmitting antenna function thereof that the structure of the extension set of the voltage and current information of the described wireless transmission detection of a. is controlled by sample circuit, controller connect to be formed; This corresponding device must have the mechanism of the voltage and current information that wireless receiving detects and structure and be connected and formed by wireless data sending communication module and receiving antenna thereof, digital signal processing module, input circuit function.Perhaps, the structure of the extension set of the voltage and current information of the described wireless transmission detection of b. is made up of mould/number conversion circuit, digital modulation circuit, frequency conversion transtation mission circuit and the connection of transmitting antenna function thereof of sample circuit, controller control; This corresponding device must have the mechanism of the voltage and current information that wireless receiving detects and structure and be connected and formed by reception and frequency changer circuit and receiving antenna thereof, digital demodulating circuit, input circuit function.2 described structures of above a, b all have digitized processing mechanism, and error free then or error little of being pooled to the voltage, the current information that detect on this device with wireless transmission with ignoring.Perhaps, the structure of the extension set of the voltage and current information of the described wireless transmission detection of c. is made up of digital sample circuit, digital amplifying circuit and the connection of transmitting antenna function thereof; This corresponding device must have the mechanism of the voltage and current information that wireless receiving detects and structure and be connected and formed by digital received amplifying circuit and receiving antenna thereof, digital input circuit function.The described digitizing structure of c point directly error free or error little of being pooled to the voltage, the current information that detect on this device with wireless transmission/receive mode with ignoring.The electronic circuit spare design that each circuit described in above a, b, the c all can be sold with existing public technology contents and public merchant and making is as long as they can finish or realize all can using or adopt of each circuit function.
About this meter error of high-voltage mutual inductor real time on-line monitoring device, this device main body partly includes precision metering or detects the mechanism and the structure of voltage and current information, includes as it: Instrument shell, panel with and interior metering or detect the electronic circuit etc. of voltage and current information.About measuring or detect the mechanism and the structure of voltage, electric current instrument, should there be all available existing public technology contents of which mechanism and structure to solve and design, no longer stating more.This apparatus features is: the monitoring that the first is implemented under high pressure (more than 10KV), forceful electric power situation, it two is monitorings that real-time online is implemented under high pressure, forceful electric power situation for a long time.Described this device must comprise or have at least one or more than one (as two or three etc.) can be real-time, error free or error can detect the detection accessory of voltage and current information with ignoring, described detection accessory be the test side or/and extension set: this device of a. is or/and have at least one metering or the test side and the cable thereof of detection voltage and current information.In metering, become error free or error little of can ignoring, this just requires test side and cable thereof that fixing structure and fixing known detection error amount must be arranged and with its deduction, become error free or error little of ignoring.Or/and, b. this device is or/and have at least one wire transmission or/and the mechanism of the voltage and current information that wireless transmission measured or detected, this mechanism forms by electronic mechanism, this mechanism be connect with the cable of this device main body part by wire transmission or get in touch by wireless transmission/reception, these mechanisms are arranged on the branch body portion outside this apparatus main body part, constitute the extension set of this device, this extension set is made up of housing and interior electronic mechanism thereof.Described electronic mechanism is made of assemblings such as multiple electronic component, device, assembly, parts, integrated circuit block, electronic circuit and software programs in this way.C. the high voltage potential transformer secondary side voltage and current information of sampling or detection is calculated and is drawn the value of the meter error of high-voltage mutual inductor of real time on-line monitoring by mathematical formulae; This mathematical formulae is:
f U＝{f 0-(I X/I H)[(f 0-f H)cos( X- H)+0.0291(δ 0-δ H)sin( X- H)]}(％)，
δ U＝{δ 0+(I X/I H)[34.38(f 0-f H)sin( X- H)-(δ 0-δ H)cos( X- H)]}(′)，
In the formula: f U, δ URatio and the angular difference of-tested high voltage potential transformer under the actual motion load;
f 0, δ 0-unloaded ratio and the unloaded angular difference measured in advance;
f H, δ HRatio and angular difference under-the rated load measured in advance;
I X-actual motion load is the secondary current of high voltage potential transformer down;
I HSecondary current under the-rated load measured in advance;
XThe angle of impedance of-actual motion load, i.e. phase angle between high voltage potential transformer secondary voltage and secondary current;
HAngle of impedance under the-rated load measured in advance;
(%)-result of calculation is percentage;
(')-result of calculation unit is for dividing; Described sampling or the voltage and current information that detects are chosen as by the calculation mechanism that mathematical formulae calculates meter error of high-voltage mutual inductor: on meter error of high-voltage mutual inductor real time on-line monitoring device, calculation mechanism is set, or to adopt computing machine or computing center be its calculation mechanism.
According to above-described meter error of high-voltage mutual inductor real time on-line monitoring device, technical characterstic also has: the concrete structure of described meter error of high-voltage mutual inductor real time on-line monitoring device is: described this device of a. is or/and at least one of band detects the structure of the test side of voltage and current information is: the cable that connects with this device detection input end and the voltage and current sample detecting end of end thereof.Its sample detecting end in this way directly and the union end of the high voltage potential transformer secondary side line of three-phase.B. described this device is or/and the split of the voltage and current information that at least one wire transmission of band detects or branch machine mechanism, the detailed structure of the mechanism of the voltage and current information that wire transmission detects between its extension set and this device is:--the input circuit function connects composition to the mould/number conversion circuit of the sample circuit of voltage and current information-controller control for transmission circuit and transmission yarn--interface circuit and connector--, the sample unit of its sample circuit can be arranged on tested high voltage potential transformer secondary side voltage, current information sampling position, its sample unit in this way directly and the union end of three-phase high-voltage voltage mutual inductor secondary side line, to the moving connector of interface circuit, constitute the wire transmission extension set of this device, mechanism's union end is gone in the output that its moving connector is this wire transmission extension set, and it decides the input circuit that connector constitutes this device voltage and current information.C. described this device is or/and the split of the voltage and current information that at least one wireless transmission of band detects or divide machine mechanism, and the detailed structure of the mechanism of the voltage and current information that its extension set and wireless transmission/receptions between this device detect is: mould/number conversion circuit, transtation mission circuit and the transmitting antenna function thereof that the sample circuit of voltage and current, controller are controlled connects the extension set of the voltage and current information of composition wireless transmission detection.The sample unit of its sample circuit can be arranged on tested high voltage potential transformer secondary side voltage, current information sampling position, and its sample unit in this way directly and the union end of three-phase high-voltage voltage mutual inductor secondary side line.This device also must corresponding be provided with the mechanism of the voltage and current information of wireless receiving detection, the mechanism of the voltage and current information that described wireless receiving detects is arranged on this apparatus main body part, connected and formed by the receiving circuit of voltage and current information and receiving antenna thereof, amplifying circuit, input circuit function, its input circuit promptly is the input circuit of the voltage and current information of this device.The extension set of not getting rid of extension set that this device has the test side of detecting voltage, current information, voltage that wire transmission detects, current information simultaneously, voltage that wireless transmission detects, current information is the structure of several (as three kinds each) altogether.
According to above-described meter error of high-voltage mutual inductor real time on-line monitoring device, technical characterstic also has: the concrete structure of described meter error of high-voltage mutual inductor real time on-line monitoring device is: this device of a. or have or be provided with calculation mechanism, the structure of calculation mechanism is: micro computer or microprocessor and software program thereof and auxiliary circuit, and this calculation mechanism is pressed mathematical formulae to the voltage and current information of sampling or detection:
f U＝{f 0-(I X/I H)[(f 0-f H)cos( X- H)+0.0291(δ 0-δ H)sin( X- H)]}(％)，
δ U={ δ 0+ (I X/ I H) [34.38 (f 0-f H) sin ( X- H)-(δ 0-δ H) cos ( X- H)] ('), calculate the value of the meter error of high-voltage mutual inductor of real time on-line monitoring.B. this device is or/and at least one computing center is wire transmission connects or the structure of the contact of wireless transmission/receptions is: the concrete structure of the mechanism of the voltage and current information of the wire transmission detection between this device of i. and the computing center that connects is: the structure of the mechanism of the voltage and current information of described this device wire transmission detection is connected one by one and is formed by digital processing circuit-wire transmission interface circuit-transmission yarn.Perhaps, the concrete structure of the mechanism of the voltage and current information that detects of the wireless transmission between this device of ii. and the computing center that gets in touch/reception is: the structure of the mechanism of the voltage and current information that described this device wireless transmission detects is connected by digital processing circuit, wireless interaction interface circuit and transmitting antenna function thereof to be formed; The computing center that gets in touch with this device must correspondingly be provided with the mechanism of the voltage and current information of wireless receiving detection, the mechanism of the voltage and current information that described wireless receiving detects is arranged on computing center, is connected and is formed by voltage and current message pick-up antenna, wireless interaction interface circuit function.
Do not get rid of yet this device simultaneously also and wired connection of other several (as two or three) calculation mechanism (as computing center etc.) or/and radio contact.
According to above-described meter error of high-voltage mutual inductor real time on-line monitoring device, the detailed technology characteristics also have: the detailed structure of described meter error of high-voltage mutual inductor real time on-line monitoring device is: 1). described this device is or/and at least one of band detects the detailed structure of the test side of voltage and current information is: the detection cable and the sample detecting end of this test side have fixing structure, if any fixing build-out and test side of fixing and fixing electrical structure parameter etc., voltage is being detected in this test side like this, the detection error that causes during current information be fix with known, can be with its deduction in detection, in metering, become error free or error little of ignoring.2). described this device is or/and the extension set of the voltage and current information that at least one wire transmission of band detects, and the detailed structure of the mechanism of the voltage and current information that wire transmission detects between its extension set and this device is: mould/number conversion circuit, photoelectric isolating circuit, differential output circuit, transmission circuit, difference input circuit, photoelectric isolating circuit, input circuit that the structure of the mechanism of the voltage and current information of the described wire transmission detection of a. is controlled by sample circuit, controller connect one by one and form.Perhaps, the structure of the mechanism of the voltage and current information of the described wire transmission detection of b. is connected one by one and is formed by mould/number conversion circuit, electrical-optical conversion interface circuit, Transmission Fibers, opto-electronic conversion interface circuit, amplifying circuit, the input circuit of sample circuit, controller control.2 described structures of above a, b all have digitized processing mechanism, and error free then or error little of being pooled to the voltage, the current information that detect on this device with wire transmission with ignoring.Perhaps, the structure of the mechanism of the voltage and current information of the described wire transmission detection of c. is connected one by one and is formed by digital sample circuit, digital amplifying circuit, transmission circuit, interface circuit, digital input circuit.Perhaps, the structure of the mechanism of the voltage and current information of the described wire transmission detection of d. is by digital output end--and wire transmission cable-digital input end constitutes.The described digital transmission of 2 of above c, d mechanism directly error free or error little of being pooled to the voltage, the current information that detect on this device with wire transmission with ignoring.The electronic circuit spare design that each circuit described in above a, b, c, the d all can be sold with existing public technology contents and public merchant and making is as long as they can finish or realize all can using or adopt of each circuit function.3). described this device is or/and the extension set of the voltage and current information that at least one wireless transmission of band detects, and the detailed structure of the mechanism of the voltage and current information of wireless transmission/receptions detection is between its extension set and this device: mould/number conversion circuit, digital signal processing module, wireless data sending communication module and transmitting antenna function thereof that the structure of the extension set of the voltage and current information of the described wireless transmission detection of a. is controlled by sample circuit, controller connect to be formed; This corresponding device must have the mechanism of the voltage and current information that wireless receiving detects and structure and be connected and formed by wireless data sending communication module and receiving antenna thereof, digital signal processing module, input circuit function.Perhaps, the structure of the extension set of the voltage and current information of the described wireless transmission detection of b. is made up of mould/number conversion circuit, digital modulation circuit, frequency conversion transtation mission circuit and the connection of transmitting antenna function thereof of sample circuit, controller control; This corresponding device must have the mechanism of the voltage and current information that wireless receiving detects and structure and be connected and formed by reception and frequency changer circuit and receiving antenna thereof, digital demodulating circuit, input circuit function.2 described structures of above a, b all have digitized processing mechanism, and error free then or error little of being pooled to the voltage, the current information that detect on this device with wireless transmission with ignoring.Perhaps, the structure of the extension set of the voltage and current information of the described wireless transmission detection of c. is made up of digital sample circuit, digital amplifying circuit and the connection of transmitting antenna function thereof; This corresponding device must have the mechanism of the voltage and current information that wireless receiving detects and structure and be connected and formed by digital received amplifying circuit and receiving antenna thereof, digital input circuit function.The described digitizing structure of c point directly error free or error little of being pooled to the voltage, the current information that detect on this device with wireless transmission/receive mode with ignoring.The electronic circuit spare design that each circuit described in above a, b, the c all can be sold with existing public technology contents and public merchant and making is as long as they can finish or realize all can using or adopt of each circuit function.
The advantage of meter error of high-voltage mutual inductor realtime on-line monitoring method of the present invention and monitoring device is a lot: one, the characteristics of this meter error of high-voltage mutual inductor realtime on-line monitoring method are: 1. this method is at high pressure (more than 10KV), the monitoring of implementing under the forceful electric power situation, it makes this detection method be extended to high pressure measurement or detection technique field, high pressure, the electric energy metrical of forceful electric power proposes comprehensively the electric energy metrical technology beyond doubt, more stern challenge needs the high pressure measurement versatility to rise to high pressure, the level that forceful electric power standard and safety etc. require; 2. this method is the monitoring that real-time online is implemented under high pressure, forceful electric power situation for a long time, the monitoring method under high pressure, forceful electric power situation, implemented of real-time online chronically, can be described as high pressure measurement or detection technique the highest requirement and level, also is high pressure measurement or detection technique the most difficult requirement and level; 3. this real-time online long term monitoring methods of under high pressure (more than 10KV), forceful electric power situation, implementing, be autonomous innovation and the technology leap in high pressure, forceful electric power situation of high pressure measurement or detection technique, it has made contribution for the raising of high pressure measurement of China or detection level.They are two years old, this meter error of high-voltage mutual inductor real time on-line monitoring device, it is except that having above-mentioned advantage equally, also, also contribute for the scientific-technical progress of electric utility for a kind of accurate means and proving installation convenient and swift, that can use for a long time again of brand-new detection meter error of high-voltage mutual inductor are provided for the electricity consumption both sides.Be worth promoting the use of in electric system and electric industry detection range.
Four. description of drawings
Figure of description of the present invention has 9 width of cloth:
Fig. 1 meter error of high-voltage mutual inductor realtime on-line monitoring method synoptic diagram;
Fig. 2 adopts the meter error of high-voltage mutual inductor real time on-line monitoring device synoptic diagram of error free test side wire transmission mechanism and structure;
Fig. 3 adopts the meter error of high-voltage mutual inductor real time on-line monitoring device synoptic diagram of error free wire transmission extension set and structure;
Fig. 4 is the extension set and the structure principle chart of a kind of error free wire transmission voltage and current metrical information of Fig. 3 meter error of high-voltage mutual inductor real time on-line monitoring device;
Fig. 5 adopts the meter error of high-voltage mutual inductor real time on-line monitoring device synoptic diagram of error free wireless transmission/reception extension set and structure;
Fig. 6 is the extension set and the structure principle chart of a kind of error free wireless transmission/reception voltage and current metrical information of Fig. 5 meter error of high-voltage mutual inductor real time on-line monitoring device;
Fig. 7 is the extension set and the structure principle chart of the another kind of error free wireless transmission/reception voltage and current metrical information of Fig. 5 meter error of high-voltage mutual inductor real time on-line monitoring device;
Fig. 8 is the mechanism and the structure principle chart of meter error of high-voltage mutual inductor real time on-line monitoring device and computing machine or computing center's wire transmission voltage and current metrical information;
Fig. 9 is the mechanism and the structure principle chart of meter error of high-voltage mutual inductor real time on-line monitoring device and computing machine or computing center's wireless transmission/reception voltage and current metrical information.
Adopted unified label in each figure, promptly same object is used same label in each figure.In each figure: 1. high voltage potential transformer; 2. high voltage potential transformer three-phase secondary line input end; 3. the extension set of meter error of high-voltage mutual inductor real time on-line monitoring device; 4. meter error of high-voltage mutual inductor real time on-line monitoring device; 5. computing machine or computing center; The signal extension set and the device between wireless receiving and dispatching voltage and current metrical information; The signal extension set and the device between wire transmission voltage and current metrical information; 8. wireless receiving and dispatching voltage and current metrical information between indication device and calculation mechanism; 9. wire transmission voltage and current metrical information between indication device and calculation mechanism; 10. dotted line signal indoor and outdoor separatrix; 11. signal sampled voltage and current information; 12. controller, microprocessor or single-chip microcomputer etc. in this way; 13. mould/number conversion circuit; 14. photoelectric isolating circuit (going out); 15. difference amplification output circuit; 16. difference is amplified input circuit; 17. photoelectric isolating circuit (going into); 18. digital signal processing module (a); 19. interface circuit (a); 20. wireless data sending communication module (a); 21. wireless data sending communication module (b); 22. interface circuit (b); 23. digital signal processing module (b); 24. digital modulation circuit; 25. frequency changer circuit; 26. amplification transtation mission circuit; 27. receive and frequency changer circuit; 28. digital demodulating circuit; 29. digital processing circuit; 30. wire transmission interface circuit; 31. wireless interaction interface circuit.
Five. specific embodiments
Non-limiting examples of the present invention is as follows:
Embodiment one. meter error of high-voltage mutual inductor realtime on-line monitoring method and monitoring device
The content of this embodiment comprises two parts, and the first is about the meter error of high-voltage mutual inductor realtime on-line monitoring method, and it two is about meter error of high-voltage mutual inductor real time on-line monitoring device.
(1). the meter error of high-voltage mutual inductor realtime on-line monitoring method
This meter error of high-voltage mutual inductor realtime on-line monitoring method of this example is the method for real-time online, true and accurate, long term monitoring meter error of high-voltage mutual inductor, also promptly measures the method that high voltage potential transformer (PT) causes error.The characteristics of this method are: the monitoring that the first is implemented under high pressure (more than 10KV), forceful electric power situation, it two is monitorings that real-time online is implemented under high pressure, forceful electric power situation for a long time.Described meter error of high-voltage mutual inductor realtime on-line monitoring method, concrete condition is shown in Figure of description 1: adopt the metering of precision or detecting instrument 3,4 (perhaps 3 is 4 annex or extension set), measure or detect high voltage potential transformer 1 secondary side magnitude of voltage and current value simultaneously at high voltage potential transformer 1 secondary side real-time online, the ratio of two values is high voltage potential transformer secondary load value.Be noted that: sample voltage value is at the secondary side root, and current value can detect at any place before the secondary side load.Mathematical formulae by known strictness calculates meter error of high-voltage mutual inductor then, and described mathematical formulae is:
f U＝{f 0-(I X/I H)[(f 0-f H)cos( X- H)+0.0291(δ 0-δ H)sin( X- H)]}(％)，
δ U={ δ 0+ (I X/ I H) [34.38 (f 0-f H) sin ( X- H)-(δ 0-δ H) cos ( X- H)] ('); In the formula:
f U, δ URatio and the angular difference of-tested high voltage potential transformer under the actual motion load;
f 0, δ 0-unloaded ratio and the unloaded angular difference measured in advance;
f H, δ HRatio and angular difference under-the rated load measured in advance;
I X-actual motion load is the secondary current of high voltage potential transformer down;
I HSecondary current under the-rated load measured in advance;
XThe angle of impedance of-actual motion load, i.e. phase angle between high voltage potential transformer secondary voltage and secondary current;
HAngle of impedance under the-rated load measured in advance;
(%)-and result of calculation: percentage;
(')-result of calculation: unit is for dividing.The metering of described employing precision or the implication of detecting instrument are: one, under high pressure (more than 10KV), forceful electric power situation, meter error of high-voltage mutual inductor is implemented its high voltage potential transformer 1 secondary side voltage and current information of monitoring; Its two, under high pressure, forceful electric power situation, meter error of high-voltage mutual inductor is implemented the long-term monitoring of real-time online, monitor the voltage and current information of its high voltage potential transformer 1 secondary side.In other words the precision of described employing metering or detecting instrument must have performances such as high pressure resistant, anti-forceful electric power (big electric current), real-time online use for a long time, measure of precision is satisfactory, safe operation meets the requirements, and could monitor meter error of high-voltage mutual inductor.In Fig. 1,7 signal wire transmission metering or detection information, 6 signal wireless transmissions measure or the detection information, and 10 signal open airs are on-the-spot to demarcate with the user pulpit.
(2). meter error of high-voltage mutual inductor real time on-line monitoring device
The meter error of high-voltage mutual inductor real time on-line monitoring device that this is routine promptly is precision metering shown in Fig. 1 or detecting instrument 4, and device 4 concrete structures of this example are united with Fig. 4, Fig. 5 and Fig. 6 by Fig. 2, Fig. 3 and illustrated.Mechanism and structure that this routine device main body part (4 among each figure) includes high voltage potential transformer secondary side magnitude of voltage and current value metering or detects include as it: Instrument shell, panel with and interior voltage and current information metering or the electronic circuit that detects etc.About the mechanism and the structure of high voltage potential transformer secondary side magnitude of voltage and current value metering or detection, there is all available existing public technology contents of which mechanism and structure to solve and design, needn't state more.This apparatus features is: the monitoring that the first is implemented under high pressure (more than 10KV), forceful electric power situation, it two is monitorings that real-time online is implemented under high pressure, forceful electric power situation for a long time.The device 4 of this example must have at least one or more than one (as two or three etc.) can be real-time, error free or error can detect the detection accessory 3 of voltage, current information with ignoring, described detection accessory is test side a 3 ' or/and extension set 3.A. this device 4 has test side 3 ' and the cable that at least one detects high voltage potential transformer secondary side magnitude of voltage and current value information.In metering, become error free or error little of can ignoring, this just require test side 3 ' and cable must have fixing structure and fixing known detection error amount and with its deduction, become error free or error little of ignoring.B. device 4 that should example has at least one real-time, error free or error can ignore the ground high voltage potential transformer secondary side magnitude of voltage that wire transmission detected and the mechanism 3 of current value information.C. device 4 that should example has at least one real-time, error free or error can ignore the ground high voltage potential transformer secondary side magnitude of voltage that wireless transmission detected and the mechanism 3 of current value information.Mechanism among above b, the c forms by electronic mechanism, this mechanism is and the main part of this device 4 having that cable wire connects or get in touch by wireless transmission/reception by transmission, these mechanisms are arranged on this and install branch body portion outside 4 main parts, constitute the extension set 3 of this device, this extension set is made up of housing and interior electronic mechanism thereof.Described electronic mechanism is made of assemblings such as multiple electronic component, device, assembly, parts, integrated circuit block, electronic circuit and software programs in this way.Described real-time, error free or error can ignore ground wire transmission or wireless transmission is meant: the wire transmission of this device 4 or wireless transmission extension set 3 the high voltage potential transformer secondary side magnitudes of voltage of sampling or detection and current value information through error free after the digitized processing or error little of being pooled on this device 4 with ignoring.Also to point out: the device 4 of this example be have simultaneously the test side 3 of detecting high voltage potential transformer secondary side magnitude of voltage and current value information ', the structure of the extension set 3 each (totally three) of the extension set 3 of high voltage potential transformer secondary side magnitude of voltage that wire transmission detects and current value information, high voltage potential transformer secondary side magnitude of voltage that wireless transmission detects and current value information.As shown in Figure 2: at least one of the device of this example 4 bands detect high voltage potential transformer secondary side magnitude of voltage and current value information test side 3 ' structure be: detect the cable that input ends connect and the sample detecting end of end thereof with this example device 4, its sample detecting end in this way directly and the union end of voltage, electric current three-phase secondary cable, it is higher to carry out sampling precision like this.Detection cable and sample detecting end that at least one of device 4 band of this example detects the test side 3 ' detailed structure be: this test side 3 ' of high voltage potential transformer secondary side magnitude of voltage and current value information have fixing structure, if any fixing build-out and detection termination of fixing and electric parameter structure etc., like this this test side 3 ' the detection error that when detecting metrical information, causes be fix with known, can be with its deduction in detection, in metering, become error free or error little of ignoring.As shown in Fig. 3, Fig. 4: the high voltage potential transformer secondary side magnitude of voltage that at least one wire transmission of the device of this example 4 bands detects and the split of current value information or divide machine mechanism 3, the structure of the high voltage potential transformer secondary side magnitude of voltage that 4 wire transmission of its extension set 3 and this example device detect and the mechanism of current value information is: the sample circuit-controller 12 of high voltage potential transformer secondary side magnitude of voltage and current value information control mould/the input circuit function connects composition for number conversion circuit 13--transmission circuit and transmission yarn--interface circuit and connector--.The sample unit of its sample circuit can be arranged on the section start end 2 (sampling end) of tested secondary circuit, i.e. the secondary voltage at PT place, electric current metering intelligence sample position, and its sample unit is in this way directly and the union end of voltage, electric current three-phase secondary cable.To the moving connector of interface circuit, constitute the wire transmission extension set 3 of this example device 4, mechanism's union end is gone in the output that its moving connector is this wire transmission extension set 3, and it decides high voltage potential transformer secondary side magnitude of voltage and current value input circuit that connector constitutes this example device 4.The detailed structure of the high voltage potential transformer secondary side magnitude of voltage that at least one wire transmission of device 4 bands of this example detects and the extension set 3 of current value information has: the structure of the high voltage potential transformer secondary side magnitude of voltage that this routine wire transmission detects and the mechanism of current value metrical information is by sample circuit, mould/number conversion the circuit 13 of controller 12 controls, photoelectric isolating circuit (going out) 14, differential output circuit 15, transmission circuit, difference input circuit 16, photoelectric isolating circuit (going into) 17, input circuit connects composition one by one.All there are digitized processing mechanism in the high voltage potential transformer secondary side magnitude of voltage that this example wire transmission detects and the mechanism of current value metrical information: the mould/number conversion circuit 13 of controller 12 controls, error free then or error little to can be with ignoring with wire transmission the high voltage potential transformer secondary side magnitude of voltage that detects and current value information aggregating to this example device 4.The electronic circuit spare design that each circuit of the high voltage potential transformer secondary side magnitude of voltage that this example wire transmission detects and the mechanism of current value information all can be sold with existing public technology contents and public merchant and making is as long as they can finish or realize all can using or adopt of each circuit function.As Fig. 5, shown in Fig. 6: the magnitude of voltage that at least one wireless transmission of device 4 bands of this example detects and the split or the branch machine mechanism 3 of current value information, the structure of the high voltage potential transformer secondary side magnitude of voltage that the wireless transmission that its extension set 3 and this example device are 4/reception detects and the mechanism of current value information is: the sample circuit of high voltage potential transformer secondary side magnitude of voltage and current value information, mould/number conversion the circuit 13 of controller 12 controls, transtation mission circuit and transmitting antenna function thereof connect the magnitude of voltage of composition wireless transmission detection and the extension set of current value information, the sample unit of its sample circuit can be arranged on the section start end of tested secondary circuit, be the voltage at PT place, the current information sampling position at CT place, the direct in this way and voltage of its sample unit, the union end of electric current three-phase secondary cable, this example device 4 also must corresponding be provided with the high voltage potential transformer secondary side magnitude of voltage of wireless receiving detection and the mechanism of current value information, the magnitude of voltage that this routine wireless receiving detects and the mechanism of current value information are arranged on these example device 4 main parts, receiving circuit and receiving antenna thereof by high voltage potential transformer secondary side magnitude of voltage and current value information, amplifying circuit, the input circuit function connects to be formed, and its input circuit promptly is the high voltage potential transformer secondary side magnitude of voltage of this device and the input circuit of current value information.The detailed structure of the high voltage potential transformer secondary side magnitude of voltage that at least one wireless transmission of device 4 bands of this example detects and the extension set 3 of current value information is: the structure of the magnitude of voltage that this routine wireless transmission detects and the extension set of current value information is made up of mould/number conversion circuit 13, digital signal processing module (a) 18, interface circuit (a) 19, wireless data sending communication module (a) 20 and the connection of transmitting antenna function thereof of sample circuit, controller 12 controls.The structure that this corresponding example device 4 must have the mechanism of high voltage potential transformer secondary side magnitude of voltage that wireless receiving detects and current value information is: connected and formed by wireless data sending communication module (b) 21 and receiving antenna thereof, interface circuit (b) 22, digital signal processing module (b) 23, input circuit function.The structure of the high voltage potential transformer secondary side magnitude of voltage of this example wireless transmission detection and the mechanism of current value information all has the mould/number conversion circuit 13 of digitized processing mechanism controls device 12 controls, and error free then or error little of installing high voltage potential transformer secondary side magnitude of voltage that detects and current value information aggregating on 4 to this with wireless transmission with ignoring.The electronic circuit spare design that each circuit of the high voltage potential transformer secondary side magnitude of voltage that this example wireless transmission detects and the mechanism of current value information all can be sold with existing public technology contents and public merchant and making is as long as they can finish or realize all can using or adopt of each circuit function.The detection accessory of this device 4 has: test side 3 ' or the extension set 3 of the extension set 3 of wire transmission detection or wireless transmission detection.
The operating process of the meter error of high-voltage mutual inductor real time on-line monitoring of this example device 4 is as follows: by the metering of meter error of high-voltage mutual inductor real time on-line monitoring device 4 and detection accessory 3 real-time onlines thereof or detect the PT error in dipping monitoring of high voltage potential transformer: placing the detection accessory 3 of this example device 4 of the section start end of high voltage potential transformer 1 secondary circuit (is the extension set of instrument 4, in this way test side 3 ' or extension set 3) metering simultaneously or detect the current information (2 sampling end) of section at one time and the information of voltage of PT section start end (2 sampling end) the same time period of tested secondary circuit, and it is real-time by its detection accessory 3, error free or error can ignore with the mode of wire transmission or wireless transmission/reception sampling or the high voltage potential transformer secondary side magnitude of voltage that detects and current value information aggregating to this example device 4, and this detecting instrument 4 is provided with calculation mechanism, the ratio of two values is high voltage potential transformer secondary load value, calculate meter error of high-voltage mutual inductor by mathematical formulae then, described mathematical formulae is:
f U＝{f 0-(I X/I H)[(f 0-f H)cos( X- H)+0.0291(δ 0-δ H)sin( X- H)]}(％)，
δ U={ δ 0+ (I X/ I H) [34.38 (f 0-f H) sin ( X- H)-(δ 0-δ H) cos ( X- H)] ('), the implication of each mathematic sign all illustrates in this example mathematical formulae, no longer repeats.The course of work is intact.
Embodiment two. meter error of high-voltage mutual inductor realtime on-line monitoring method and monitoring device
The content of this embodiment comprises two parts, and the first is about the meter error of high-voltage mutual inductor realtime on-line monitoring method, and it two is about meter error of high-voltage mutual inductor real time on-line monitoring device.
(1). the meter error of high-voltage mutual inductor realtime on-line monitoring method
This meter error of high-voltage mutual inductor realtime on-line monitoring method of this example, it is the method for real-time online, true and accurate, long term monitoring meter error of high-voltage mutual inductor, the characteristics of this method are: the monitoring that the first is implemented under high pressure (more than 10KV), forceful electric power situation, it two is monitorings that real-time online is implemented under high pressure, forceful electric power situation for a long time.Described meter error of high-voltage mutual inductor realtime on-line monitoring method concrete condition is shown in Figure of description 1.One of method as shown in Figure 1 is: high voltage potential transformer 1 secondary side magnitude of voltage and current value measured or detected to the instrument 4 of at least one special-purpose metering or detection voltage and current and detection accessory 3 thereof real-time online simultaneously, and by its detection accessory 3 real-time, error free or error can ignore with the mode of wire transmission sampling or the voltage and current information aggregating that detects in the metering or detecting instrument 4 of its precision, and this detecting instrument 4 is provided with calculation mechanism with by mathematical formulae:
f U＝{f 0-(I X/I H)[(f 0-f H)cos( X- H)+0.0291(δ 0-δ H)sin( X- H)]}(％)，
δ U={ δ 0+ (I X/ I H) [34.38 (f 0-f H) sin ( X- H)-(δ 0-δ H) cos ( X- H)] ('), calculate meter error of high-voltage mutual inductor.Its calculation mechanism includes micro computer or microprocessor and software program and auxiliary circuit, and all available existing public technology contents solves and design, needn't state more.The detection accessory 3 of the metering of this example precision or detecting instrument 4 is test side 3 ' and cables that one or two real-time, error free or error can detect magnitude of voltage and current value information with ignoring, these test sides and cable thereof all have fixing electrical structure parameter and fixing known detection error amount and with its deduction, in metering, become error free or error little of ignoring.All the other are not stated is same as embodiment one entirely. and (one). described in, no longer repeat.
(2). meter error of high-voltage mutual inductor real time on-line monitoring device
The meter error of high-voltage mutual inductor real time on-line monitoring device that this is routine promptly is precision metering or the detecting instrument 4 shown in Fig. 1, and it designs, creates by described meter error of high-voltage mutual inductor realtime on-line monitoring method.The device 4 of this example promptly is a meter error of high-voltage mutual inductor real time on-line monitoring device, and concrete structure is illustrated by Fig. 2.Mechanism and structure that this routine device main body part (4 among the figure) includes high voltage potential transformer secondary side magnitude of voltage and current value metering or detects include as it: Instrument shell, panel with and interior magnitude of voltage and current value metering or the electronic circuit that detects etc.Which all available existing public technology contents mechanism and structure about high voltage potential transformer secondary side magnitude of voltage and current value metering or detection have solve and design, needn't state more.This apparatus features is: the monitoring that the first is implemented under high pressure (more than 10KV), forceful electric power situation, it two is monitorings that real-time online is implemented under high pressure, forceful electric power situation for a long time.The device 4 of this example must have at least one or two energy are real-time, error free or error can detect the detection accessory 3 of voltage, current information with ignoring, described detection accessory be test side 3 ', it includes test side 3 ' and the cable that detects high voltage potential transformer secondary side magnitude of voltage and current value information.In metering, become error free or error little of ignoring, this just requires test side 3, and ' and cable must have fixing structure with fixing known detection error amount and with its deduction, become error free or error little of can ignoring and give this detecting instrument 4 detection high voltage potential transformer secondary side magnitude of voltage and current value information transmission, and be provided with calculation mechanism thereon with by mathematical formulae:
f U＝{f 0-(I X/I H)[(f 0-f H)cos( X- H)+0.0291(δ 0-δ H)sin( X- H)]}(％)，
δ U={ δ 0+ (I X/ I H) [34.38 (f 0-f H) sin ( X- H)-(δ 0-δ H) cos ( X- H)] ('), calculate meter error of high-voltage mutual inductor.Its calculation mechanism comprises micro computer or microprocessor and software program and auxiliary circuit, and all available existing public technology contents solves and design, needn't state more.All the other are not stated is same as embodiment one entirely. and (two). described in, no longer repeat.
Embodiment three. meter error of high-voltage mutual inductor realtime on-line monitoring method and monitoring device
The content of this embodiment comprises two parts, and the first is about the meter error of high-voltage mutual inductor realtime on-line monitoring method, and it two is about meter error of high-voltage mutual inductor real time on-line monitoring device.
(1). the meter error of high-voltage mutual inductor realtime on-line monitoring method
This meter error of high-voltage mutual inductor realtime on-line monitoring method of this example, it is the method for real-time online, true and accurate, long term monitoring meter error of high-voltage mutual inductor, the characteristics of this method are: the monitoring that the first is implemented under high pressure (more than 10KV), forceful electric power situation, it two is monitorings that real-time online is implemented under high pressure, forceful electric power situation for a long time.Described meter error of high-voltage mutual inductor realtime on-line monitoring method concrete condition is shown in Figure of description 1.One of method as shown in Figure 1 is: at least one special-purpose metering or detect instrument 4 and detection accessory 3 real-time online metering simultaneously thereof of voltage and current or detect high voltage potential transformer 1 secondary side magnitude of voltage and current value, and by its detection accessory 3 real-time, error free or error can ignore with the mode of wire transmission sampling or the voltage and current information aggregating that detects in the metering or detecting instrument 4 of its precision.As shown in Figure 1, this detecting instrument 4 can be real-time, error free or error can ignore press mathematical formulae for other calculation mechanism 5 (as computing center) in the mode of wire transmission sampling or the voltage and current information transmission that detects:
f U＝{f 0-(I X/I H)[(f 0-f H)cos( X- H)+0.0291(δ 0-δ H)sin( X- H)]}(％)，
δ U={ δ 0+ (I X/ I H) [34.38 (f 0-f H) sin ( X- H)-(δ 0-δ H) cos ( X- H)] ('), calculate meter error of high-voltage mutual inductor.The detection accessory 3 of the metering of this example precision or detecting instrument 4 is extension sets 3 that one or two real-time, error free or error can be ignored the ground voltage and current information that wire transmission detected, this extension set 3 connects by the cable wire of transmitting that has with the main part of the device 4 of this example, this routine extension set 3 is formed by electronic mechanism, described electronic mechanism is made of assemblings such as multiple electronic component, device, assembly, parts, integrated circuit block, electronic circuit and software programs in this way.The extension set 3 of the voltage and current information that wire transmission detected that this is routine has digitized processing mechanism, and extension set 3 is error free or error is little is pooled on the device 4 of this example to ignoring ground wire transmission after sampling or the voltage and current information via digitized processing that detect.All the other are not stated is same as embodiment one entirely. (one). in, embodiment two. described in (one), no longer repeat.
(2). meter error of high-voltage mutual inductor real time on-line monitoring device
The meter error of high-voltage mutual inductor real time on-line monitoring device that this is routine promptly is precision metering or the detecting instrument 4 shown in Fig. 1, and it designs, creates by described meter error of high-voltage mutual inductor realtime on-line monitoring method.The device 4 of this example promptly is a meter error of high-voltage mutual inductor real time on-line monitoring device, and concrete structure is illustrated by Fig. 3.This routine device main body part (4 among the figure) includes the mechanism and the structure of high voltage potential transformer secondary side magnitude of voltage and current value metering or detection, mechanism and structure about high voltage potential transformer secondary side magnitude of voltage and current value metering or detection, there is all available existing public technology contents of which mechanism and structure to solve and design, needn't states more.This apparatus features is: the monitoring that the first is implemented under high pressure (more than 10KV), forceful electric power situation.It two is monitorings that real-time online is implemented under high pressure, forceful electric power situation for a long time.They are three years old, the device 4 of this example must have at least one, or two energy are real-time, error free or error can detect voltage with ignoring, the detection accessory 3 of current information, described detection accessory is that one or two is real-time, error free or error can detect the wire transmission extension set 3 of voltage and current information with ignoring, and the structure of the wire transmission extension set 3 of the detection voltage and current information of this example is by sample circuit, mould/number conversion the circuit 13 of controller 12 controls, the electrical-optical conversion interface circuit, Transmission Fibers, the opto-electronic conversion interface circuit, amplifying circuit, input circuit connects composition one by one.This routine wire transmission extension set 3 all has digitized processing mechanism: the mould/number conversion circuit 13 of controller 12 control, can be error free or error little to can be with ignoring with wire transmission the voltage and current information aggregating that detects to this example device 4.The electronic circuit spare design that each circuit of the wire transmission extension set 3 that this is routine all can be sold with existing public technology contents and public merchant and making is as long as they can finish or realize all can using or adopt of each circuit function.As shown in Figure 3, this detecting instrument 4 can be real-time, error free or error can ignore press mathematical formulae: f for other calculation mechanism 5 (as computing center) with wire transmission mode sampling or the voltage and current information transmission that detects U={ f 0-(I X/ I H) [(f 0-f H) cos ( X- H)+0.0291 (δ 0-δ H) sin ( X- H)] (%), δ U={ δ 0+ (I X/ I H) [34.38 (f 0-f H) sin ( X- H)-(δ 0-δ H) cos ( X- H)] ('), calculate meter error of high-voltage mutual inductor.The concrete structure of the mechanism of the voltage and current information that 5 wire transmission of this device 4 and the computing center that connects detect is discussed in embodiment nine specially.All the other are not stated is same as embodiment one entirely. in (two), embodiment two. described in (two), no longer repeat.
Embodiment four. meter error of high-voltage mutual inductor realtime on-line monitoring method and monitoring device
The content of this embodiment comprises two parts, and the first is about the meter error of high-voltage mutual inductor realtime on-line monitoring method, and it two is about meter error of high-voltage mutual inductor real time on-line monitoring device
(1). the meter error of high-voltage mutual inductor realtime on-line monitoring method
This meter error of high-voltage mutual inductor realtime on-line monitoring method of this example, it is the method for real-time online, true and accurate monitoring meter error of high-voltage mutual inductor, the characteristics of this method are: the monitoring that the first is implemented under high pressure (more than 10KV), forceful electric power situation, it two is monitorings that real-time online is implemented under high pressure, forceful electric power situation for a long time.Described meter error of high-voltage mutual inductor realtime on-line monitoring method concrete condition is shown in Figure of description 1.One of method as shown in Figure 1 is: at least one special-purpose metering or detect instrument 4 and detection accessory 3 real-time online metering simultaneously thereof of voltage and current or detect high voltage potential transformer 1 secondary side magnitude of voltage and current value, and by its detection accessory 3 real-time, error free or error can ignore with the mode of wireless transmission/receptions the voltage and current information aggregating of sampling or detection in the metering or detecting instrument 4 of its precision.This detecting instrument 4 can be real-time, error free or error can ignore press mathematical formulae for other calculation mechanism 5 (as computing center) in the mode of wire transmission sampling or the voltage and current information transmission that detects:
f U＝{f 0-(I X/I H)[(f 0-f H)cos( X- H)+0.0291(δ 0-δ H)sin( X- H)]}(％)，
δ U={ δ 0+ (I X/ I H) [34.38 (f 0-f H) sin ( X- H)-(δ 0-δ H) cos ( X- H)] ('), calculate meter error of high-voltage mutual inductor.The detection accessory 3 of the metering of this example precision or detecting instrument 4 is extension sets 3 that one or two real-time, error free or error can be ignored the ground voltage and current information that wireless transmission detected, this extension set 3 links together by wireless transmission/reception with the main part of the device 4 of this example, this routine extension set 3 is formed by electronic mechanism, described electronic mechanism is made of assemblings such as multiple electronic component, device, assembly, parts, integrated circuit block, electronic circuit and software programs in this way.The extension set 3 of the voltage and current information that wireless transmission/reception detected that this is routine has digitized processing mechanism, and extension set 3 is error free or error is little is pooled on the device 4 of this example to ignoring ground wireless transmission/reception after sampling or the voltage and current information via digitized processing that detect.All the other are not stated is same as embodiment one entirely. and (one). described in middle embodiment three .1, no longer repeat.
(2). meter error of high-voltage mutual inductor real time on-line monitoring device
The meter error of high-voltage mutual inductor real time on-line monitoring device that this is routine promptly is precision metering or the detecting instrument 4 shown in Fig. 1, and it designs, creates by described meter error of high-voltage mutual inductor realtime on-line monitoring method.The device 4 of this example promptly is a meter error of high-voltage mutual inductor real time on-line monitoring device, and concrete structure is united by Fig. 5, Fig. 7 and illustrated.This device main body part (among two figure 4) includes metering or detects the mechanism and the structure of voltage and current information, which all available existing public technology contents mechanism and structure about metering of voltage and current information or detection have solve and design, needn't state more.The characteristics of this example device 4 are: the device 4 of this example can have the wireless transmission extension set 3 that one or two real-time, error free or error can detect voltage and current information with ignoring, the structure of the wireless transmission extension set 3 of the detection voltage and current metrical information of this example by mould/number conversion circuit 13, digital modulation circuit 24, the frequency changer circuit 25 of sample circuit, controller 12 controls, amplify transtation mission circuit 26 and transmitting antenna function thereof and connect and forms; This corresponding example device 4 must have the mechanism of the voltage and current metrical information that wireless receiving detects and structure and connect and form by receiving with frequency changer circuit 27 and receiving antenna thereof, digital demodulating circuit 28, input circuit function.This routine wireless transmission extension set 3 all has the mould/number conversion circuit 13 of digitized processing mechanism controls device 12 control, can be error free or error little to can ignore with the wireless transmission mode the voltage and current information aggregating that detects to this example device 4.The electronic circuit spare design that each circuit of the wireless transmission extension set 3 that this is routine all can be sold with existing public technology contents and public merchant and making is as long as they can finish or realize all can using or adopt of each circuit function.This detecting instrument 4 can be real-time, error free or error can ignore press mathematical formulae for other calculation mechanism 5 (as computing center) in the mode of wireless transmission/reception sampling or the voltage and current information transmission that detects:
f U＝{f 0-(I X/I H)[(f 0-f H)cos( X- H)+0.0291(δ 0-δ H)sin( X- H)]}(％)，
δ U={ δ 0+ (I X/ I H) [34.38 (f 0-f H) sin ( X- H)-(δ 0-δ H) cos ( X- H)] ('), calculate meter error of high-voltage mutual inductor.The concrete structure of the mechanism of the voltage and current information that the wireless transmission that this device 4 and the computing center that gets in touch are 5/reception detects is discussed in embodiment nine specially.All the other are not stated is same as embodiment one entirely. in (two)～and embodiment three. described in (two), no longer repeat.
Embodiment five. meter error of high-voltage mutual inductor realtime on-line monitoring method and monitoring device
The content of this embodiment comprises two parts, and the first is about the meter error of high-voltage mutual inductor realtime on-line monitoring method, and it two is about meter error of high-voltage mutual inductor real time on-line monitoring device
(1). the meter error of high-voltage mutual inductor realtime on-line monitoring method
This meter error of high-voltage mutual inductor realtime on-line monitoring method of this example, it is the method for real-time online, true and accurate, long term monitoring meter error of high-voltage mutual inductor, the characteristics of this method are: the monitoring that the first is implemented under high pressure (more than 10KV), forceful electric power situation, it two is monitorings that real-time online is implemented under high pressure, forceful electric power situation for a long time.Described meter error of high-voltage mutual inductor realtime on-line monitoring method concrete condition is shown in Figure of description 1.One of method as shown in Figure 1 is: high voltage potential transformer 1 secondary side magnitude of voltage and current value measured or detected to the instrument 4 of at least one special-purpose metering or detection voltage and current information and detection accessory 3 thereof real-time online simultaneously, and it is real-time by its detection accessory 3, error free or error can ignore with voltage and current information that wire transmission was detected and be pooled in the metering or detecting instrument 4 of its precision, the detection accessory 3 of the special use metering of this example or detection voltage and current information has two, one is real-time, error free or error can detect with ignoring voltage and current information test side 3 ' and cable, one is real-time, error free or error can be ignored the extension set 3 of the ground voltage and current information that wire transmission detected.All the other are not stated is same as embodiment one entirely. in (one)～and embodiment four. described in (one), no longer repeat.
(2). meter error of high-voltage mutual inductor real time on-line monitoring device
The meter error of high-voltage mutual inductor real time on-line monitoring device that this is routine promptly is precision metering or the detecting instrument 4 shown in Fig. 1, and it designs, creates by described meter error of high-voltage mutual inductor realtime on-line monitoring method.The device 4 of this example promptly is a meter error of high-voltage mutual inductor real time on-line monitoring device, and concrete structure is united by Fig. 2 and Fig. 3 and illustrated.This device main body part (among two figure 4) includes metering or detects the mechanism and the structure of voltage and current information, which all available existing public technology contents mechanism and structure about metering of voltage and current information or detection have solve and design, needn't state more.The characteristics of this example device 4 are: the device 4 of this example can have two detection accessory 3, one is real-time, error free or the error detection cable and the sample detecting end that can detect the test side 3 ' and cable, this test side 3 ' of voltage and current information has fixing structure with ignoring.One be real-time, error free or error can ignore the extension set 3 of the ground voltage and current information that wire transmission detected.The structure of the extension set 3 of the voltage measurement information that this wire transmission detects is connected one by one and is formed by digital sample circuit, digital amplifying circuit, transmission circuit, interface circuit, digital input circuit, and the digital transmission circuit of the extension set 3 of the voltage and current information that this wire transmission detects directly error free or error little of being pooled to the voltage and current information that detects on this device 4 with wire transmission with ignoring.This detecting instrument 4 can be real-time, error free or error can ignore with wire transmission mode press mathematical formulae for other calculation mechanism 5 (as computing center) sampling or the voltage and current information transmission that detects:
f U＝{f 0-(I X/I H)[(f 0-f H)cos( X- H)+0.0291(δ 0-δ H)sin( X- H)]}(％)，
δ U={ δ 0+ (I X/ I H) [34.38 (f 0-f H) sin ( X- H)-(δ 0-δ H) cos ( X- H)] ('), calculate meter error of high-voltage mutual inductor.The detailed structure of the mechanism of the voltage and current information that 5 wire transmission of this device 4 and the computing center that connects detect is discussed in embodiment nine specially.All the other are not stated is same as embodiment one entirely. in (two)～and embodiment four. described in (two), no longer repeat.
Embodiment six. meter error of high-voltage mutual inductor realtime on-line monitoring method and monitoring device
The content of this embodiment comprises two parts, and the first is about the meter error of high-voltage mutual inductor realtime on-line monitoring method, and it two is about meter error of high-voltage mutual inductor real time on-line monitoring device
(1). the meter error of high-voltage mutual inductor realtime on-line monitoring method
This meter error of high-voltage mutual inductor realtime on-line monitoring method of this example, it is the method for real-time online, true and accurate, long term monitoring meter error of high-voltage mutual inductor, the characteristics of this method are: the monitoring that the first is implemented under high pressure (more than 10KV), forceful electric power situation, it two is monitorings that real-time online is implemented under high pressure, forceful electric power situation for a long time.Described meter error of high-voltage mutual inductor realtime on-line monitoring method concrete condition is shown in Figure of description 1.One of method as shown in Figure 1 is: high voltage potential transformer 1 secondary side magnitude of voltage and current value measured or detected to the instrument 4 of at least one special-purpose metering or detection voltage and current information and detection accessory 3 thereof real-time online simultaneously, and it is real-time by its detection accessory 3, error free or error can ignore with the mode of wire transmission or wireless transmission/reception the voltage and current information aggregating that is detected in the metering or detecting instrument 4 of its precision, the detection accessory 3 of the special use metering of this example or detection voltage and current information has two, one is real-time, error free or error can detect with ignoring voltage and current information test side 3 ' and cable, one is real-time, error free or error can be ignored the extension set 3 of the ground voltage and current information that wireless transmission detected.This corresponding example device 4 also has the mechanism and the structure of the voltage and current information of wireless receiving detection.All the other are not stated is same as embodiment one entirely. in (one)～and embodiment four. described in (one), no longer repeat.
(2). meter error of high-voltage mutual inductor real time on-line monitoring device
The meter error of high-voltage mutual inductor real time on-line monitoring device that this is routine promptly is precision metering or the detecting instrument 4 shown in Fig. 1, and it designs, creates by described meter error of high-voltage mutual inductor realtime on-line monitoring method.The device 4 of this example promptly is a meter error of high-voltage mutual inductor real time on-line monitoring device, and concrete structure is united by Fig. 2 and Fig. 5 and illustrated.Mechanism and structure that this device main body part (among two figure 4) includes the metering of voltage and current information or detects, the characteristics of this example device 4 are: it is real-time, error free that the device 4 of this example can have 3: one of two detection accessory or the error detection cable and the sample detecting end that can detect the test side 3 ' and cable, this test side 3 ' of voltage and current information has fixing structure with ignoring.One be real-time, error free or error can ignore the extension set 3 of the ground voltage and current information that wireless transmission detected.The structure of the extension set 3 of the voltage and current information that this wireless transmission detects is connected by digital sample circuit, digital amplifying circuit and transmitting antenna function thereof and forms.This corresponding device 4 also has the mechanism and the structure of the voltage and current information of wireless receiving detection: digital received amplifying circuit and receiving antenna thereof, digital input circuit function connect to be formed.They are not shown specifically with figure.The digital circuit structure of the extension set 3 of the voltage and current information that this wireless transmission detects directly error free or error little of being pooled to the voltage and current information that detects on this device 4 with wireless transmission/receive mode with ignoring.This detecting instrument 4 can be real-time, error free or error can ignore press mathematical formulae for other calculation mechanism 5 (as computing center) in the mode of wireless transmission/reception sampling or the voltage and current information transmission that detects:
f U＝{f 0-(I X/I H)[(f 0-f H)cos( X- H)+0.0291(δ 0-δ H)sin( X- H)]}(％)，
δ U={ δ 0+ (I X/ I H) [34.38 (f 0-f H) sin ( X- H)-(δ 0-δ H) cos ( X- H)] ('), calculate meter error of high-voltage mutual inductor.The detailed structure of the mechanism of the voltage and current information that the wireless transmission that this device 4 and the computing center that gets in touch are 5/reception detects is discussed in embodiment nine specially.All the other are not stated is same as embodiment one entirely. and (two). in～embodiment five. (two). described in, no longer repeat.
Embodiment seven. meter error of high-voltage mutual inductor realtime on-line monitoring method and monitoring device
The content of this embodiment comprises two parts, and the first is about the meter error of high-voltage mutual inductor realtime on-line monitoring method, and it two is about meter error of high-voltage mutual inductor real time on-line monitoring device
(1). the meter error of high-voltage mutual inductor realtime on-line monitoring method
This meter error of high-voltage mutual inductor realtime on-line monitoring method of this example, it is the method for real-time online, true and accurate, long term monitoring meter error of high-voltage mutual inductor, the characteristics of this method are: the monitoring that the first is implemented under high pressure (more than 10KV), forceful electric power situation, it two is monitorings that real-time online is implemented under high pressure, forceful electric power situation for a long time.Described meter error of high-voltage mutual inductor realtime on-line monitoring method concrete condition is shown in Figure of description 1.One of method as shown in Figure 1 is: high voltage potential transformer 1 secondary side magnitude of voltage and current value measured or detected to the instrument 4 of at least one special-purpose metering or detection voltage and current information and detection accessory 3 thereof real-time online simultaneously, and it is real-time by its detection accessory 3, error free or error can ignore with wire transmission or wireless transmission/receive mode the voltage and current information aggregating that is detected in the metering or detecting instrument 4 of its precision, the detection accessory 3 of the special use metering of this example or detection voltage and current information has two, and one is real-time, error free or error can be ignored the extension set 3 of the ground voltage and current information that wire transmission detected.One be real-time, error free or error can ignore the extension set 3 of the ground voltage and current information that wireless transmission detected.This corresponding example device 4 also has the mechanism and the structure of the voltage and current information of wireless receiving detection.All the other are not stated is same as embodiment one entirely. and (one). in～embodiment six. (one). described in, no longer repeat.
(2). meter error of high-voltage mutual inductor real time on-line monitoring device
The meter error of high-voltage mutual inductor real time on-line monitoring device that this is routine promptly is precision metering or the detecting instrument 4 shown in Fig. 1, and it designs, creates by described meter error of high-voltage mutual inductor realtime on-line monitoring method.The device 4 of this example promptly is a meter error of high-voltage mutual inductor real time on-line monitoring device, and concrete structure is united by Fig. 2 and Fig. 5 and illustrated.Mechanism and structure that this device main body part (among two figure 4) includes the metering of voltage and current information or detects, the characteristics of this example device 4 are: the device 4 of this example can have two detection accessory 3.One be real-time, error free or error can ignore the extension set 3 of the ground voltage and current information that wire transmission detected, the structure of the mechanism of the voltage and current information that this routine wire transmission detects is by digital output end--wire transmission cable-digital input end constitutes.One be real-time, error free or error can ignore the extension set 3 of the ground voltage and current information that wireless transmission detected.This corresponding example device 4 also has the mechanism and the structure of the voltage and current information of wireless receiving detection.The extension set 3 of the voltage and current information that the extension set 3 of the voltage and current information that this routine wire transmission detects and wireless transmission detect all has digital circuit structure, and directly error free or error little of being pooled to the voltage and current information that detects on this device 4 with wire transmission, wireless transmission with ignoring.The electronic circuit spare design that each circuit of the extension set 3 of the voltage and current information that the extension set 3 of the voltage and current information that this routine wire transmission detects and wireless transmission detect all can be sold with existing public technology contents and public merchant and making is as long as they can finish or realize all can using or adopt of each circuit function.All the other are not stated is same as embodiment one entirely. and (two). in～embodiment six. (two). described in, no longer repeat.
Embodiment eight. meter error of high-voltage mutual inductor realtime on-line monitoring method and monitoring device
The content of this embodiment comprises two parts, and the first is about the meter error of high-voltage mutual inductor realtime on-line monitoring method, and it two is about meter error of high-voltage mutual inductor real time on-line monitoring device
(1). the meter error of high-voltage mutual inductor realtime on-line monitoring method
This meter error of high-voltage mutual inductor realtime on-line monitoring method of this example, it is the method for real-time online, true and accurate, long term monitoring meter error of high-voltage mutual inductor, the characteristics of this method are: the monitoring that the first is implemented under high pressure (more than 10KV), forceful electric power situation, it two is monitorings that real-time online is implemented under high pressure, forceful electric power situation for a long time.Described meter error of high-voltage mutual inductor realtime on-line monitoring method concrete condition is shown in Figure of description 1.One of method as shown in Figure 1 is: high voltage potential transformer 1 secondary side magnitude of voltage and current value measured or detected to the instrument 4 of at least one special-purpose metering or detection voltage and current information and detection accessory 3 thereof real-time online simultaneously, and it is real-time by its detection accessory 3, error free or error can ignore with wire transmission or/and the voltage and current information aggregating that wireless transmission was detected in the metering or detecting instrument 4 of its precision, the special use of this example metering or the detection accessory 3 that detects voltage and current information have three (even a plurality of): one is real-time, error free or error can detect test side 3 ' and the cable of voltage and current information with ignoring.One be real-time, error free or error can ignore the extension set 3 of the ground voltage and current information that wire transmission detected.One be real-time, error free or error can ignore the extension set 3 of the ground voltage and current information that wireless transmission detected.This corresponding example device 4 also has the mechanism and the structure of the voltage and current information of wireless receiving detection.All the other are not stated is same as embodiment one entirely. and (one). in～embodiment seven. (one). described in, no longer repeat.
(2). meter error of high-voltage mutual inductor real time on-line monitoring device
The meter error of high-voltage mutual inductor real time on-line monitoring device that this is routine promptly is precision metering or the detecting instrument 4 shown in Fig. 1, and it designs, creates by described meter error of high-voltage mutual inductor realtime on-line monitoring method.The device 4 of this example promptly is a meter error of high-voltage mutual inductor real time on-line monitoring device, and concrete structure is united by Fig. 2～Fig. 7 and illustrated.Mechanism and structure that this device main body part (among two figure 4) includes the metering of voltage and current information or detects, the characteristics of this example device 4 are: the device 4 of this example can have three kinds of detection accessory 3: a kind of is real-time, error free or error can detect test side 3 ' and the cable of voltage and current information with ignoring, ' there are fixing build-out and fixing detection termination and the electrical structure parameter of fixing etc. in this routine test side 3, the detection error that when detecting voltage and current information, causes be fix with known, can be with its deduction in detection, in metering, become error free or error little of ignoring.A kind of be real-time, error free or error can ignore the extension set 3 of the ground voltage and current information that wire transmission detected.A kind of be real-time, error free or error can ignore the extension set 3 of the ground voltage and current information that wireless transmission detected.This corresponding example device 4 also has the mechanism and the structure of the voltage and current information of wireless receiving detection.The extension set 3 of the voltage and current information that the extension set 3 of the voltage and current information that this routine wire transmission detects and wireless transmission detect all has digital circuit structure, and directly error free or error little of being pooled to the voltage and current information that detects on this device 4 with wire transmission, wireless transmission/receive mode with ignoring.Structure described in above in this way each embodiment of the various structures that the device 4 of this example can have three kinds of detection accessory 3 is described in detail in each embodiment, no longer repeats.The electronic circuit spare design that each circuit of the extension set 3 of the voltage and current information that the extension set 3 of the voltage and current information that this routine wire transmission detects and wireless transmission detect all can be sold with existing public technology contents and public merchant and making is as long as they can finish or realize all can using or adopt of each circuit function.All the other are not stated is same as embodiment one entirely. and (two). in～embodiment seven. (two). described in, no longer repeat.
Embodiment nine. meter error of high-voltage mutual inductor realtime on-line monitoring method and monitoring device
The content of this embodiment comprises two parts, and the first is about the meter error of high-voltage mutual inductor realtime on-line monitoring method, and it two is about meter error of high-voltage mutual inductor real time on-line monitoring device
(1). the meter error of high-voltage mutual inductor realtime on-line monitoring method
This meter error of high-voltage mutual inductor realtime on-line monitoring method of this example, it is the method for real-time online, true and accurate, long term monitoring meter error of high-voltage mutual inductor, the characteristics of this method are: the monitoring that the first is implemented under high pressure (more than 10KV), forceful electric power situation, it two is monitorings that real-time online is implemented under high pressure, forceful electric power situation for a long time.Described meter error of high-voltage mutual inductor realtime on-line monitoring method concrete condition is shown in Figure of description 1.One of method as shown in Figure 1 is: real-time, the error free or error of the metering of precision or detecting instrument 4 can ignore give other calculation mechanism 5 sampling or the voltage and current information transmission that detects in the mode of wire transmission or wireless transmission/reception, other calculation mechanism 5 is pressed mathematical formulae: f U={ f 0-(I X/ I H) [(f 0-f H) cos ( X- H)+0.0291 (δ 0-δ H) sin ( X- H)] (%), δ U={ δ 0+ (I X/ I H) [34.38 (f 0-f H) sin ( X- H)-(δ 0-δ H) cos ( X- H)] ('), calculate meter error of high-voltage mutual inductor.5 wireless of 8 indication devices (instrument) 4 among Fig. 1 and calculation mechanism are received voltage and current metrical information, 9 indication devices (instrument) 4 and 5 wire transmission voltage and currents of calculation mechanism metrical information.Promptly this device 4 is that wire transmission connects with a computing center 5 at least, or get in touch in the mode of wireless transmission/reception.This device 4 or be with computing center 5 wire transmission structure that connect or that wireless transmission/reception is got in touch: the concrete structure of the mechanism of the voltage and current information that wire transmission detects between this device of i. and the computing center that connects is: the structure of the mechanism of the voltage and current information that described this device wire transmission detects is connected one by one and is formed by digital processing circuit-wire transmission interface circuit (RS232 interface circuit)-transmission yarn; Perhaps, the concrete structure of the mechanism of the voltage and current information that detects of the wireless transmission between this device of ii. and the computing center that gets in touch/reception is: the structure of the mechanism of the voltage and current information that described this device wireless transmission detects is connected by digital processing circuit, wireless interaction interface circuit (wireless ethernet interface) and transmitting antenna function thereof to be formed.The computing center that gets in touch with this device must correspondingly be provided with the mechanism of the voltage and current information of wireless receiving detection, the mechanism of the voltage and current information that described wireless receiving detects is arranged on computing center, is connected and is formed by voltage and current message pick-up antenna, wireless interaction interface circuit function.Do not get rid of this device 4 simultaneously also and wired connection of other several (as two or three) calculation mechanism 5 (as computing center etc.) or/and radio contact.All the other are not stated is same as embodiment one entirely. and (one). in～embodiment eight. (one). described in, no longer repeat.
(2). meter error of high-voltage mutual inductor real time on-line monitoring device
The meter error of high-voltage mutual inductor real time on-line monitoring device that this is routine promptly is precision metering or the detecting instrument 4 shown in Fig. 1, and it designs, creates by described meter error of high-voltage mutual inductor realtime on-line monitoring method.The device 4 of this example promptly is a meter error of high-voltage mutual inductor real time on-line monitoring device, and concrete structure is united by Fig. 2～Fig. 7 and illustrated.Mechanism and structure that this device main body part (among two figure 4) includes the metering of voltage and current information or detects, the characteristics of this example device 4 are: this device 4 is or/and be that wire transmission connects with a computing center 5 at least, or get in touch in the mode of wireless transmission/reception.Do not get rid of this device 4 simultaneously also and wired connection of other several (as two or three) calculation mechanism 5 (as computing center etc.) or/and radio contact.The structure that this device 4 or the wire transmission that connects with computing center 5 or wireless transmission/reception are got in touch is: the structure of the mechanism of the voltage and current information that described this device wire transmission detects is connected one by one and is formed by digital processing circuit-wire transmission interface circuit (RS232 interface circuit)-transmission yarn; Perhaps, the concrete structure of the mechanism of the voltage and current information that detects of the wireless transmission between this device of ii. and the computing center that gets in touch/reception is: the structure of the mechanism of the voltage and current information that described this device wireless transmission detects is connected by digital processing circuit, wireless interaction interface circuit (wireless ethernet interface) and transmitting antenna function thereof to be formed; The computing center that gets in touch with this device must correspondingly be provided with the mechanism of the voltage and current information of wireless receiving detection, the mechanism of the voltage and current information that described wireless receiving detects is arranged on computing center, is connected and is formed by voltage and current message pick-up antenna, wireless interaction interface circuit function.All the other are not stated is same as embodiment one entirely. and (two). in～embodiment eight. (two). described in, no longer repeat.

Claims (10)

1. meter error of high-voltage mutual inductor realtime on-line monitoring method, it is real-time online, the method of long term monitoring meter error of high-voltage mutual inductor, be characterised in that: described meter error of high-voltage mutual inductor realtime on-line monitoring method is: the metering or the detecting instrument that adopt precision, measure or detect high voltage potential transformer secondary side magnitude of voltage and current value simultaneously at high voltage potential transformer secondary side real-time online, the ratio of two values is high voltage potential transformer secondary load value, calculate meter error of high-voltage mutual inductor by mathematical formulae then, described mathematical formulae is:
f U＝{f 0-(I X/I H)[(f 0-f H)cos( X- H)+0.0291(δ 0-δ H)sin( X- H)]}(％)
δ U＝{δ 0+(I X/I H)[34.38(f 0-f H)sin( X- H)-(δ 0-δ H)cos( X- H)]}(′)
In the formula: f U, δ URatio and the angular difference of-tested high voltage potential transformer under the actual motion load;
f 0, δ 0-unloaded ratio and the unloaded angular difference measured in advance;
f H, δ HRatio and angular difference under-the rated load measured in advance;
I X-actual motion load is the secondary current of high voltage potential transformer down;
I HSecondary current under the-rated load measured in advance;
XThe angle of impedance of-actual motion load, i.e. phase angle between high voltage potential transformer secondary voltage and secondary current;
HAngle of impedance under the-rated load measured in advance;
(%)-result of calculation is percentage;
(')-result of calculation unit is for dividing.
2. meter error of high-voltage mutual inductor realtime on-line monitoring method according to claim 1 is characterised in that:
A. described this meter error of high-voltage mutual inductor realtime on-line monitoring method is: adopt and be provided with the metering of precision or magnitude of voltage and the current value that the detecting instrument real-time online measured or detected the high voltage potential transformer secondary side simultaneously at the high voltage potential transformer secondary side, sample voltage value is at the secondary side root, and current value can detect at any place before the secondary side load;
B. adopt the instrument and the detection accessory real-time online metering simultaneously thereof of at least one special-purpose metering or detection voltage and current or detect high voltage potential transformer secondary side magnitude of voltage and current value, and by its detection accessory real-time, error free or error can ignore with the mode of wire transmission or wireless transmission/reception sampling or the voltage and current information aggregating that detects in the metering or detecting instrument of its precision, and this detecting instrument is provided with calculation mechanism with by mathematical formulae:
f U＝{f 0-(I X/I H)[(f 0-f H)cos( X- H)+0.0291(δ 0-δ H)sin( X- H)]}(％)，
δ U={ δ 0+ (I X/ I H) [34.38 (f 0-f H) sin ( X- H)-(δ 0-δ H) cos ( X- H)] ('), calculate meter error of high-voltage mutual inductor; Perhaps,
C. real-time, the error free or error of the metering of precision or detecting instrument can ignore give sampling or the voltage and current information transmission that detects other calculation mechanism by mathematical formulae: f in the mode of wire transmission or wireless transmission/reception U={ f 0-(I X/ I H) [(f 0-f H) cos ( X- H)+0.0291 (δ 0-δ H) sin ( X- H)] (%), δ U={ δ 0+ (I X/ I H) [34.38 (f 0-f H) sin ( X- H)-(δ 0-δ H) cos ( X- H)] ('), calculate meter error of high-voltage mutual inductor.
3. meter error of high-voltage mutual inductor realtime on-line monitoring method according to claim 1 is characterised in that:
A. described real-time, error free or error can ignore with wire transmission mode to the metering of its precision or the method on the detecting instrument be sampling or the voltage and current information aggregating that detects: the metering of described precision or the detection accessory of detecting instrument and cable thereof have fixing known detection error amount and with its deduction, become error free in metering; Perhaps,
B. described real-time, error free or error can ignore in the mode of wire transmission or wireless transmission/reception sampling or the voltage and current information that detects is pooled to the metering of its precision or the method on the detecting instrument is: make the metering of this precision or the sampling of detecting instrument detection accessory or the voltage and current information that detects after digitized processing error free or error can ignore be pooled on the metering of this precision or the detecting instrument or/and in the calculation mechanism with the method for wire transmission or wireless transmission/reception.
4. meter error of high-voltage mutual inductor realtime on-line monitoring method according to claim 1, be characterised in that: the metering of described meter error of high-voltage mutual inductor precision that realtime on-line monitoring method adopts or the system of selection of detecting instrument are: adopt described meter error of high-voltage mutual inductor realtime on-line monitoring method design, produce meter error of high-voltage mutual inductor real time on-line monitoring device, this device main body partly includes the precision metering or detects the mechanism and the structure of voltage and current information, be characterized in: described this device must comprise or have that at least one is real-time, error free or error can detect the detection accessory of voltage and current information with ignoring, described detection accessory be the test side or/and extension set:
A. this device is or/and have at least one metering or the test side and the cable thereof of detection voltage and current information; Or/and,
B. this device is or/and have at least one wire transmission or/and the mechanism of the voltage and current information that wireless transmission measured or detected, this mechanism forms by electronic mechanism, this mechanism is and this device main body part having that cable wire connects or get in touch by wireless transmission/reception by transmission, these mechanisms are arranged on the branch body portion outside this apparatus main body part, constitute the extension set of this device, this extension set is made up of housing and interior electronic mechanism thereof;
C. described voltage and current information sampling or detection is chosen as by the calculation mechanism that mathematical formulae calculates meter error of high-voltage mutual inductor: the instrument or the meter error of high-voltage mutual inductor real time on-line monitoring device of precision metering or detection voltage and current information are provided with calculation mechanism and structure, and this calculation mechanism comprises micro computer or microprocessor and software program and auxiliary circuit; Or adopt other computing machine or computing center to be its calculation mechanism.
5. meter error of high-voltage mutual inductor realtime on-line monitoring method according to claim 4 is characterised in that: the concrete structure of described meter error of high-voltage mutual inductor real time on-line monitoring device is:
A. described this device is or/and at least one of band detects the structure of the test side of voltage and current information is: the cable that connects with this device detection input end and the voltage and current sample detecting end of end thereof;
B. described this device is or/and the split of the voltage and current information that at least one wire transmission of band detects or branch machine mechanism, the detailed structure of the mechanism of the voltage and current information that wire transmission detects between its extension set and this device is:--the input circuit function connects composition to the mould/number conversion circuit of the sample circuit of voltage and current information-controller control for transmission circuit and transmission yarn--interface circuit and connector--, to the moving connector of interface circuit, constitute the wire transmission extension set of this device, mechanism's union end is gone in the output that its moving connector is this wire transmission extension set, and it decides the input circuit that connector constitutes this device voltage and current information;
C. described this device is or/and the split of the voltage and current information that at least one wireless transmission of band detects or divide machine mechanism, and the detailed structure of the mechanism of the voltage and current information that its extension set and wireless transmission/receptions between this device detect is: mould/number conversion circuit, transtation mission circuit and the transmitting antenna function thereof that the sample circuit of voltage and current, controller are controlled connects the extension set of the voltage and current information of composition wireless transmission detection; This device also must corresponding be provided with the mechanism of the voltage and current information of wireless receiving detection, the mechanism of the voltage and current information that described wireless receiving detects is arranged on this apparatus main body part, connected and formed by the receiving circuit of voltage and current information and receiving antenna thereof, amplifying circuit, input circuit function, its input circuit promptly is the input circuit of the voltage and current information of this device;
D. this device or the wire transmission that connects with computing center or the wireless transmission/reception structure of getting in touch is: this device is or/and be that wire transmission connects or the structure of getting in touch of wireless transmission/reception is with a computing center at least:
I. the concrete structure of the mechanism of the voltage and current information that detects of the wire transmission between this device and the computing center that connects is: the structure of the mechanism of the voltage and current information that described this device wire transmission detects is connected one by one and is formed by digital processing circuit-wire transmission interface circuit-transmission yarn; Perhaps,
Ii. the concrete structure of the mechanism of the voltage and current information that detects of the wireless transmission between this device and the computing center that gets in touch/reception is: the structure of the mechanism of the voltage and current information that described this device wireless transmission detects is connected by digital processing circuit, wireless interaction interface circuit and transmitting antenna function thereof to be formed; The computing center that gets in touch with this device must correspondingly be provided with the mechanism of the voltage and current information of wireless receiving detection, the mechanism of the voltage and current information that described wireless receiving detects is arranged on computing center, is connected and is formed by voltage and current message pick-up antenna, wireless interaction interface circuit function.
6. meter error of high-voltage mutual inductor realtime on-line monitoring method according to claim 5 is characterised in that: the detailed structure of described meter error of high-voltage mutual inductor real time on-line monitoring device is:
1). described this device is or/and at least one of band detects the detailed structure of the test side of voltage and current information is: the detection cable and the sample detecting end of this test side have fixing structure;
2). described this device is or/and the extension set of the voltage and current information that at least one wire transmission of band detects, and the detailed structure of the mechanism of the voltage and current information of wire transmission detection is between its extension set and this device:
The structure of the mechanism of the voltage and current information that a. described wire transmission detects is connected one by one and is formed by mould/number conversion circuit, photoelectric isolating circuit, differential output circuit, transmission circuit, difference input circuit, photoelectric isolating circuit, the input circuit of sample circuit, controller control; Perhaps,
The structure of the mechanism of the voltage and current information that b. described wire transmission detects is connected one by one and is formed by mould/number conversion circuit, electrical-optical conversion interface circuit, Transmission Fibers, opto-electronic conversion interface circuit, amplifying circuit, the input circuit of sample circuit, controller control; Perhaps,
The structure of the mechanism of the voltage and current information that c. described wire transmission detects is connected one by one and is formed by digital sample circuit, digital amplifying circuit, transmission circuit, interface circuit, digital input circuit; Perhaps,
The structure of the mechanism of the voltage and current information that d. described wire transmission detects is by digital output end--and wire transmission cable-digital input end constitutes;
3). described this device is or/and the extension set of the voltage and current information that at least one wireless transmission of band detects, and the detailed structure of the mechanism of the voltage and current information of wireless transmission between its extension set and this device/reception detection is:
The structure of the extension set of the voltage and current information that a. described wireless transmission detects is made up of mould/number conversion circuit, digital signal processing module, wireless data sending communication module and the connection of transmitting antenna function thereof of sample circuit, controller control; This corresponding device must have the mechanism of the voltage and current information that wireless receiving detects and structure and be connected and formed by wireless data sending communication module and receiving antenna thereof, digital signal processing module, input circuit function; Perhaps,
The structure of the extension set of the voltage and current information that b. described wireless transmission detects is made up of mould/number conversion circuit, digital modulation circuit, frequency conversion transtation mission circuit and the connection of transmitting antenna function thereof of sample circuit, controller control; This corresponding device must have the mechanism of the voltage and current information that wireless receiving detects and structure and be connected and formed by reception and frequency changer circuit and receiving antenna thereof, digital demodulating circuit, input circuit function; Perhaps,
The structure of the extension set of the voltage and current information that c. described wireless transmission detects is connected by digital sample circuit, digital amplifying circuit and transmitting antenna function thereof and forms; This corresponding device must have the mechanism of the voltage and current information that wireless receiving detects and structure and be connected and formed by digital received amplifying circuit and receiving antenna thereof, digital input circuit function.
7. meter error of high-voltage mutual inductor real time on-line monitoring device, this device main body partly includes the precision metering or detects the mechanism and the structure of voltage and current information, be characterised in that: described this device must comprise or have the detection accessory that at least one real-time, error free or error can detect voltage and current information with ignoring, described detection accessory be the test side or/and extension set:
A. this device is or/and have at least one metering or the test side and the cable thereof of detection voltage and current information; Or/and,
B. this device is or/and have at least one wire transmission or/and the mechanism of the voltage and current information that wireless transmission measured or detected, this mechanism forms by electronic mechanism, this mechanism is and this device main body part having that cable wire connects or get in touch by wireless transmission/reception by transmission, these mechanisms are arranged on the branch body portion outside this apparatus main body part, constitute the extension set of this device, this extension set is made up of housing and interior electronic mechanism thereof;
C. the high voltage potential transformer secondary side voltage and current information of sampling or detection is calculated and is drawn the value of the meter error of high-voltage mutual inductor of real time on-line monitoring by mathematical formulae; This mathematical formulae is:
f U＝{f 0-(I X/I H)[(f 0-f H)cos( X- H)+0.0291(δ 0-δ H)sin( X- H)]}(％)，
δ U＝{δ 0+(I X/I H)[34.38(f 0-f H)sin( X- H)-(δ 0-δ H)cos( X- H)]}(′)，
In the formula: f U, δ URatio and the angular difference of-tested high voltage potential transformer under the actual motion load;
f 0, δ 0-unloaded ratio and the unloaded angular difference measured in advance;
f H, δ HRatio and angular difference under-the rated load measured in advance;
I X-actual motion load is the secondary current of high voltage potential transformer down;
I HSecondary current under the-rated load measured in advance;
XThe angle of impedance of-actual motion load, i.e. phase angle between high voltage potential transformer secondary voltage and secondary current;
HAngle of impedance under the-rated load measured in advance;
(%)-result of calculation is percentage;
(')-result of calculation unit is for dividing; Described sampling or the voltage and current information that detects are chosen as by the calculation mechanism that mathematical formulae calculates meter error of high-voltage mutual inductor: on meter error of high-voltage mutual inductor real time on-line monitoring device, calculation mechanism is set, or to adopt computing machine or computing center be its calculation mechanism.
8. meter error of high-voltage mutual inductor real time on-line monitoring device according to claim 7 is characterised in that: the concrete structure of described meter error of high-voltage mutual inductor real time on-line monitoring device is:
A. described this device is or/and at least one of band detects the structure of the test side of voltage and current information is: the cable that connects with this device detection input end and the voltage and current sample detecting end of end thereof;
B. described this device is or/and the split of the voltage and current information that at least one wire transmission of band detects or branch machine mechanism, the detailed structure of the mechanism of the voltage and current information that wire transmission detects between its extension set and this device is:--the input circuit function connects composition to the mould/number conversion circuit of the sample circuit of voltage and current information-controller control for transmission circuit and transmission yarn--interface circuit and connector--, to the moving connector of interface circuit, constitute the wire transmission extension set of this device, mechanism's union end is gone in the output that its moving connector is this wire transmission extension set, and it decides the input circuit that connector constitutes this device voltage and current information;
C. described this device is or/and the split of the voltage and current information that at least one wireless transmission of band detects or divide machine mechanism, and the detailed structure of the mechanism of the voltage and current information that its extension set and wireless transmission/receptions between this device detect is: mould/number conversion circuit, transtation mission circuit and the transmitting antenna function thereof that the sample circuit of voltage and current, controller are controlled connects the extension set of the voltage and current information of composition wireless transmission detection; This device also must corresponding be provided with the mechanism of the voltage and current information of wireless receiving detection, the mechanism of the voltage and current information that described wireless receiving detects is arranged on this apparatus main body part, connected and formed by the receiving circuit of voltage and current information and receiving antenna thereof, amplifying circuit, input circuit function, its input circuit promptly is the input circuit of the voltage and current information of this device.
9. meter error of high-voltage mutual inductor real time on-line monitoring device according to claim 7 is characterised in that: the concrete structure of described meter error of high-voltage mutual inductor real time on-line monitoring device is:
A. this device or have or be provided with calculation mechanism, the structure of calculation mechanism is: micro computer or microprocessor and software program thereof and auxiliary circuit, this calculation mechanism is pressed mathematical formulae to sampling or the voltage and current information that detects: f U={ f 0-(I X/ I H) [f 0-f H) cos ( X- H)+0.0291 (δ 0-δ H) sin ( X- H)] (%), δ U={ δ 0+ (I X/ I H) [34.38 (f 0-f H) sin ( X- H)-(δ 0-δ H) cos ( X- H)] ('), calculate the value of the meter error of high-voltage mutual inductor of real time on-line monitoring;
B. this device or the wire transmission that connects with computing center or the wireless transmission/reception structure of getting in touch is: this device is or/and at least one computing center is wire transmission connects or the structure of the contact of wireless transmission/reception is:
I. the concrete structure of the mechanism of the voltage and current information that detects of the wire transmission between this device and the computing center that connects is: the structure of the mechanism of the voltage and current information that described this device wire transmission detects is connected one by one and is formed by digital processing circuit-wire transmission interface circuit-transmission yarn; Perhaps,
Ii. the concrete structure of the mechanism of the voltage and current information that detects of the wireless transmission between this device and the computing center that gets in touch/reception is: the structure of the mechanism of the voltage and current information that described this device wireless transmission detects is connected by digital processing circuit, wireless interaction interface circuit and transmitting antenna function thereof to be formed; The computing center that gets in touch with this device must correspondingly be provided with the mechanism of the voltage and current information of wireless receiving detection, the mechanism of the voltage and current information that described wireless receiving detects is arranged on computing center, is connected and is formed by voltage and current message pick-up antenna, wireless interaction interface circuit function.
10. meter error of high-voltage mutual inductor real time on-line monitoring device according to claim 7 is characterised in that: the detailed structure of described meter error of high-voltage mutual inductor real time on-line monitoring device is:
1). described this device is or/and at least one of band detects the detailed structure of the test side of voltage and current information is: the detection cable and the sample detecting end of this test side have fixing structure;
2). described this device is or/and the extension set of the voltage and current information that at least one wire transmission of band detects, and the detailed structure of the mechanism of the voltage and current information of wire transmission detection is between its extension set and this device:
The structure of the mechanism of the voltage and current information that a. described wire transmission detects is connected one by one and is formed by mould/number conversion circuit, photoelectric isolating circuit, differential output circuit, transmission circuit, difference input circuit, photoelectric isolating circuit, the input circuit of sample circuit, controller control; Perhaps,
The structure of the mechanism of the voltage and current information that b. described wire transmission detects is connected one by one and is formed by mould/number conversion circuit, electrical-optical conversion interface circuit, Transmission Fibers, opto-electronic conversion interface circuit, amplifying circuit, the input circuit of sample circuit, controller control; Perhaps,
The structure of the mechanism of the voltage and current information that c. described wire transmission detects is connected one by one and is formed by digital sample circuit, digital amplifying circuit, transmission circuit, interface circuit, digital input circuit; Perhaps,
The structure of the mechanism of the voltage and current information that d. described wire transmission detects is by digital output end--and wire transmission cable-digital input end constitutes;
3). described this device is or/and the extension set of the voltage and current information that at least one wireless transmission of band detects, and the detailed structure of the mechanism of the voltage and current information of wireless transmission between its extension set and this device/reception detection is:
The structure of the extension set of the voltage and current information that a. described wireless transmission detects is made up of mould/number conversion circuit, digital signal processing module, wireless data sending communication module and the connection of transmitting antenna function thereof of sample circuit, controller control; This corresponding device must have the mechanism of the voltage and current information that wireless receiving detects and structure and be connected and formed by wireless data sending communication module and receiving antenna thereof, digital signal processing module, input circuit function; Perhaps,
The structure of the extension set of the voltage and current information that b. described wireless transmission detects is made up of mould/number conversion circuit, digital modulation circuit, frequency conversion transtation mission circuit and the connection of transmitting antenna function thereof of sample circuit, controller control; This corresponding device must have the mechanism of the voltage and current information that wireless receiving detects and structure and be connected and formed by reception and frequency changer circuit and receiving antenna thereof, digital demodulating circuit, input circuit function; Perhaps,
The structure of the extension set of the voltage and current information that c. described wireless transmission detects is connected by digital sample circuit, digital amplifying circuit and transmitting antenna function thereof and forms; This corresponding device must have the mechanism of the voltage and current information that wireless receiving detects and structure and be connected and formed by digital received amplifying circuit and receiving antenna thereof, digital input circuit function.
CN 200710130122 2007-07-20 2007-07-20 Method and apparatus for realtime and on-line monitoring meter error of high-voltage mutual inductor Pending CN101074988A (en)

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CN102236085A (en) * 2010-12-22 2011-11-09 保定天威集团有限公司 Method for measuring error of current transformer under 200Hz frequency
CN102353920A (en) * 2011-07-14 2012-02-15 浙江省电力公司 Mutual inductor automation detecting system
CN101493509B (en) * 2009-01-13 2012-03-14 国网电力科学研究院 Verifying apparatus for measuring extra-high voltage transformer error
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CN101493509B (en) * 2009-01-13 2012-03-14 国网电力科学研究院 Verifying apparatus for measuring extra-high voltage transformer error
CN101556320B (en) * 2009-04-30 2011-10-26 厦门红相电力设备股份有限公司 On-site calibrating method and device of capacitor voltage transformer
CN102466789B (en) * 2010-11-12 2015-11-25 华东电力试验研究院有限公司 Photoelectric current transformer stability test device and method
CN102466789A (en) * 2010-11-12 2012-05-23 华东电力试验研究院有限公司 Stability testing device and method for optoelectronic transformers
CN102236085A (en) * 2010-12-22 2011-11-09 保定天威集团有限公司 Method for measuring error of current transformer under 200Hz frequency
CN102353920A (en) * 2011-07-14 2012-02-15 浙江省电力公司 Mutual inductor automation detecting system
CN102353920B (en) * 2011-07-14 2014-03-19 浙江省电力公司 Mutual inductor automation detecting system
CN105068035A (en) * 2015-08-28 2015-11-18 重庆拉姆达信息技术有限公司 Voltage transformer error level dynamic detection method and system
CN105068035B (en) * 2015-08-28 2018-04-13 重庆拉姆达信息技术有限公司 A kind of voltage transformer error horizontal dynamic detection method and system
CN109188334A (en) * 2018-11-14 2019-01-11 国网宁夏电力有限公司电力科学研究院 Transformer error calibration method and device
CN109188334B (en) * 2018-11-14 2021-08-03 国网宁夏电力有限公司营销服务中心(国网宁夏电力有限公司计量中心) Mutual inductor error calibration method and device
CN110888099A (en) * 2019-12-09 2020-03-17 国网山东省电力公司电力科学研究院 Test control system and method
CN111983542A (en) * 2020-08-04 2020-11-24 太原市优特奥科电子科技有限公司 Online detection system and method for measurement error of metering transformer
CN115587673A (en) * 2022-11-10 2023-01-10 武汉格蓝若智能技术股份有限公司 Voltage transformer error state prediction method and system

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