CN109507524A - A kind of one secondary connection calibration equipment of switchgear - Google Patents
A kind of one secondary connection calibration equipment of switchgear Download PDFInfo
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- CN109507524A CN109507524A CN201811654869.2A CN201811654869A CN109507524A CN 109507524 A CN109507524 A CN 109507524A CN 201811654869 A CN201811654869 A CN 201811654869A CN 109507524 A CN109507524 A CN 109507524A
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- switchgear
- receiver
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- circuit
- transmitting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/67—Testing the correctness of wire connections in electric apparatus or circuits
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- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a kind of one secondary connection calibration equipments of switchgear, it include: transmitter and receiver, the transmitter connects the receiver by GPS antenna output, electrically input is connected with 50Hz signal acquisition line to the receiver, electrically input is connected with transmitting signal-conditioning unit to the transmitter, the 50Hz waveform checking and debugging device includes 50Hz signal acquisition line, 50Hz signal transmitting folder, ground line, electrically output is connected with the 50Hz signal transmitting folder and the ground line to the 50Hz signal acquisition line, the inside of the receiver is fixedly installed with complex wave receiving sensor, compound wave detector, low-frequency acquisition device, high frequency detector, the invention has for the switchgear run, the verification of one secondary connection of switchgear can be completed in advance, calibrate the cabinet of wiring dislocation, Guarantee that the secondary nuclear phase of switchgear newly installed is accurate, it is ensured that electrification cyclization quickly, reliably, improves the resultant effect of power supply reliability.
Description
Technical field
The present invention relates to calibration equipment technical field, specially a kind of one secondary connection calibration equipment of switchgear.
Background technique
According to industry standard, the L1 of switch cabinet electrified indicator should connect in A phase through overcoupled circuits, and L2 should be through overcoupling
Circuit connects in B phase, and L3 should connect in C phase through overcoupled circuits, but due to the secondary electrification display of numerous producers production switchgear
The case where device standard is different, is likely to result in secondary connection dislocation, and closed switch cabinet hyperbaric chamber in the energized state can not
It opens, when nuclear phase, can not differentiate whether a secondary connection has dislocation phenomenon, causes to be unable to complete accurate nuclear phase switchgear is secondary,
And then influence power supply reliability.
It there is no the instrument verified for one secondary connection of power supply system switchgear at present, carrying out switchgear examination
When, mainly mode by visual observation is verified, but since visual mode error is larger, and it is wrong often to will lead to ring network cabinet wiring
The phenomenon that position, occurs, therefore needs to research and develop a kind of one secondary connection calibration equipment of switchgear.
Summary of the invention
The purpose of the present invention is to provide a kind of one secondary connection calibration equipments of switchgear, to solve in above-mentioned background technique
The one secondary connection calibration equipment of switchgear of proposition often will lead to the problem of characteristics such as the phenomenon that ring network cabinet wiring dislocation generation.
To achieve the above object, the invention provides the following technical scheme: a kind of one secondary connection calibration equipment of switchgear, packet
Include: transmitter and receiver, the transmitter connect the receiver by GPS antenna output, and the receiver electrically inputs
It is connected with 50Hz signal acquisition line, electrically input is connected with transmitting signal-conditioning unit, the 50Hz waveform verification to the transmitter
Adjuster includes 50Hz signal acquisition line, 50Hz signal transmitting folder, ground line, the 50Hz signal acquisition line electrically output connection
Have 50Hz signal transmitting folder and a ground line, the inside of the receiver be fixedly installed with complex wave receiving sensor,
Compound wave detector, low-frequency acquisition device, high frequency detector, the receiver include amplifying circuit, filter circuit, amplifying circuit,
Center processor and control display circuit, the amplifying circuit, the filter circuit, the amplifying circuit, the center processing
Device and the control display circuit successively electrically output connection, the receiver are received by connecting terminal and the complex wave and are passed
Sensor, the compound wave detector, the low-frequency acquisition device or high frequency detector connection, the connecting terminal other end are straight
It connects and is connect with first order amplifying circuit, the transmitter includes transmitting module, frequency hopping circuit, CPU, control circuit, on transmitter
Equipped with grounding ports, electrically input is connected with the control circuit to the CPU, and electrically there are three described for output connection by the CPU
Frequency hopping circuit, electrically output is connected with the transmitting module to each frequency hopping circuit.
Preferably, there are two types of modes for the 50Hz waveform checking and debugging device, a kind of for for the progress of the switchgear of electrification
50Hz waveform checking and debugging, another kind is for the switchgear of power failure progress 50Hz waveform checking and debugging.
Preferably, three transmitting module connection four-ways emit direct-connected folder, and the four-way emits direct-connected folder difference
L1, L2, L3 of the secondary potential indicator of connecting switch cabinet and equipment.
Preferably, there are three signal amplification modules for its internal fixed installation of the transmitting signal-conditioning unit.
Compared with prior art, the beneficial effects of the present invention are: the invention provides a kind of one secondary connection schools of switchgear
Experiment device can complete switchgear one or two for the switchgear run by one secondary connection calibration equipment of switchgear in advance
The verification of secondary wiring calibrates the cabinet of wiring dislocation, in production work in the future, can according to one or two wiring relationships,
Nuclear phase mode is adjusted, secondary connection verification is completed when checking and accepting for the switchgear newly installed, guarantees that newly installs opens
It is accurate to close the secondary nuclear phase of cabinet, it is ensured that electrification cyclization quickly, reliably, improves power supply reliability.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention;
Fig. 2 is the system structure diagram of transmitter of the present invention;
Fig. 3 is the structural schematic diagram of inventive receiver;
Fig. 4 is the system structure diagram of inventive receiver;
Fig. 5 is the structural schematic diagram of 50Hz waveform checking and debugging device of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution: a kind of one secondary connection calibration equipment of switchgear, for guarantee newly to install
The secondary nuclear phase of switchgear is accurate, it is ensured that electrification cyclization quickly, reliably, improves power supply reliability, referring to Fig. 1, including: transmitter
And receiver, the transmitter connect the receiver by GPS antenna output, electrically input is connected with 50Hz to the receiver
Signal acquisition line, electrically input is connected with transmitting signal-conditioning unit to the transmitter, its inside of the transmitting signal-conditioning unit is solid
There are three signal amplification modules for Dingan County's dress, referring to Fig. 2, the transmitter includes transmitting module, frequency hopping circuit, CPU, control electricity
Road, transmitter are equipped with grounding ports, and electrically input is connected with the control circuit, the CPU electrically output connection to the CPU
There are three the frequency hopping circuit, electrically output is connected with the transmitting module, three transmitting moulds to each frequency hopping circuit
Block connects four-way and emits direct-connected folder, the four-way emit it is direct-connected press from both sides be separately connected the secondary potential indicator of switchgear L1,
L2, L3 and equipment, referring to Fig. 3, the inside of the receiver is fixedly installed with complex wave receiving sensor, complex wave detection
Device, low-frequency acquisition device, high frequency detector, the receiver are selected different detectors according to the difference of tranmitting frequency, are being switched
High-pressure side is identified, is verified, referring to Fig. 4, the receiver include amplifying circuit, filter circuit, amplifying circuit, at center
Manage device and control display circuit, the amplifying circuit, the filter circuit, the amplifying circuit, the center processor and institute
State the successively electrically output connection of control display circuit, the receiver by connecting terminal and the complex wave receiving sensor,
The compound wave detector, the low-frequency acquisition device or the high frequency detector connection, the connecting terminal other end directly with
First order amplifying circuit connection, referring to Fig. 5, the 50Hz waveform checking and debugging device includes 50Hz signal acquisition line, 50Hz letter
Number transmitting folder, ground line, electrically output is connected with the 50Hz signal transmitting folder and the ground connection for the 50Hz signal acquisition line
Line, there are two types of modes for the 50Hz waveform checking and debugging device, a kind of to adjust to carry out the verification of 50Hz waveform for the switchgear of electrification
Whole, another kind is for the switchgear of power failure progress 50Hz waveform checking and debugging.
In the specific use process, when needing the present invention, its inside of transmitting signal-conditioning unit is fixed during use
There are three signal amplification modules for installation, and the one mode of 50Hz waveform checking and debugging device is using fft algorithm to collected abnormal
After change waveform is modified, by the comparison in system to all kinds of distorted waveforms, the reason of leading to wave distortion, butted line are found
It is unsatisfactory for wave distortion caused by standard, by adjusting route correction waveform, i.e., according to standard mode of connection rewiring, because
For wave distortion caused by other reasons, is compared by the waveform and original waveform of fft algorithm reparation, calculate phase shift angle, and
Phase shift angle is labeled on switchgear, another mode carries out 50Hz waveform checking and debugging, 50Hz for the switchgear having a power failure
Waveform checking and debugging device host connects 50Hz signal acquisition line and 50Hz signal transmitting folder, a clip of 50Hz signal transmitting folder
It is connected on the contact of secondary terminated line of switchgear capacitance sensor, the connection of another clip is grounded and is grounded, and examines first
The capacitance value for surveying high pressure primary side calculates capacitor in 50Hz using XC=1/ (2 π fC) according to capacitance
Impedance calculates high-tension line by the voltage and current after capacitance sensor according to impedometer, and then host meeting basis calculates
Voltage and current emit same 50Hz signal, by 50Hz signal acquisition line from switchgear secondary potential indicator acquisition letter
Number, the 50Hz signal of collected 50Hz signal and transmission is compared, analysis waveform distortion type, finding causes waveform abnormal
The reason of change, butted line are unsatisfactory for wave distortion caused by standard, by adjusting route correction waveform;Because other reasons are led
The wave distortion of cause is compared by the waveform of fft algorithm reparation and original waveform, calculates phase shift angle, and by phase shifting angle scale
Note is on switchgear.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of one secondary connection calibration equipment of switchgear characterized by comprising transmitter and receiver, the transmitter
The receiver is connected by GPS antenna output, electrically input is connected with 50Hz signal acquisition line, the transmitting to the receiver
Electromechanics input is connected with transmitting signal-conditioning unit, and the 50Hz waveform checking and debugging device includes 50Hz signal acquisition line, 50Hz
Signal transmitting folder is grounded, and the 50Hz signal acquisition line electrical property output is connected with the 50Hz signal transmitting folder and connects with described
Ground wire, the inside of the receiver are fixedly installed with complex wave receiving sensor, compound wave detector, low-frequency acquisition device, high frequency
Detector, the receiver includes amplifying circuit, filter circuit, amplifying circuit, center processor and controls display circuit, described
Amplifying circuit, the filter circuit, the amplifying circuit, the center processor and the control display circuit are successively electrically defeated
It connects out, the receiver passes through connecting terminal and the complex wave receiving sensor, the compound wave detector, the low frequency
Detector or high frequency detector connection, the connecting terminal other end are directly connect with first order amplifying circuit, the hair
The machine of penetrating includes transmitting module, frequency hopping circuit, CPU, control circuit, and transmitter is equipped with grounding ports, and electrically input connects the CPU
It is connected to the control circuit, electrically there are three the frequency hopping circuit, each frequency hopping circuit is electrically defeated for output connection by the CPU
It is connected with the transmitting module out.
2. one secondary connection calibration equipment of a kind of switchgear according to claim 1, it is characterised in that: the 50Hz waveform
Checking and debugging device is a kind of to carry out 50Hz waveform checking and debugging for the switchgear of electrification there are two types of mode, another kind for for
The switchgear of power failure carries out 50Hz waveform checking and debugging.
3. one secondary connection calibration equipment of a kind of switchgear according to claim 1, it is characterised in that: three transmittings
Module connects four-way and emits direct-connected folder, and the four-way emits direct-connected folder and is separately connected the secondary potential indicator of switchgear
L1, L2, L3 and equipment.
4. one secondary connection calibration equipment of a kind of switchgear according to claim 1, it is characterised in that: the transmitting signal
Adjuster its internal be fixedly mounted that there are three signal amplification modules.
Priority Applications (1)
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CN201811654869.2A CN109507524A (en) | 2018-12-29 | 2018-12-29 | A kind of one secondary connection calibration equipment of switchgear |
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CN201811654869.2A CN109507524A (en) | 2018-12-29 | 2018-12-29 | A kind of one secondary connection calibration equipment of switchgear |
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CN201811654869.2A Pending CN109507524A (en) | 2018-12-29 | 2018-12-29 | A kind of one secondary connection calibration equipment of switchgear |
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Citations (7)
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US20130035886A1 (en) * | 2010-04-14 | 2013-02-07 | Abb Technology Ag | Method and arrangement for voltage measurement |
CN105629084A (en) * | 2015-12-27 | 2016-06-01 | 国家电网公司 | Phase-checking device special for electric power |
CN105929354A (en) * | 2016-06-29 | 2016-09-07 | 国家电网公司 | Automatic calibrating device and method for large current transformer |
CN205679719U (en) * | 2016-04-28 | 2016-11-09 | 国网福建省电力有限公司 | A kind of intelligent cable nuclear phase instrument of band communication function |
CN106707085A (en) * | 2017-01-11 | 2017-05-24 | 鞍山恒泰电气有限公司 | Primary and secondary connection verifying device of switch cabinet |
CN206420986U (en) * | 2017-01-11 | 2017-08-18 | 鞍山恒泰电气有限公司 | A kind of secondary connection calibration equipment of switch cubicle one |
CN207380138U (en) * | 2017-11-15 | 2018-05-18 | 广西电网有限责任公司桂林供电局 | Sinusoidal signal identification device and line phase checking device |
-
2018
- 2018-12-29 CN CN201811654869.2A patent/CN109507524A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130035886A1 (en) * | 2010-04-14 | 2013-02-07 | Abb Technology Ag | Method and arrangement for voltage measurement |
CN105629084A (en) * | 2015-12-27 | 2016-06-01 | 国家电网公司 | Phase-checking device special for electric power |
CN205679719U (en) * | 2016-04-28 | 2016-11-09 | 国网福建省电力有限公司 | A kind of intelligent cable nuclear phase instrument of band communication function |
CN105929354A (en) * | 2016-06-29 | 2016-09-07 | 国家电网公司 | Automatic calibrating device and method for large current transformer |
CN106707085A (en) * | 2017-01-11 | 2017-05-24 | 鞍山恒泰电气有限公司 | Primary and secondary connection verifying device of switch cabinet |
CN206420986U (en) * | 2017-01-11 | 2017-08-18 | 鞍山恒泰电气有限公司 | A kind of secondary connection calibration equipment of switch cubicle one |
CN207380138U (en) * | 2017-11-15 | 2018-05-18 | 广西电网有限责任公司桂林供电局 | Sinusoidal signal identification device and line phase checking device |
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