CN203249972U - Transient state waveform analysis system based on electronic mutual inductor - Google Patents
Transient state waveform analysis system based on electronic mutual inductor Download PDFInfo
- Publication number
- CN203249972U CN203249972U CN 201320114201 CN201320114201U CN203249972U CN 203249972 U CN203249972 U CN 203249972U CN 201320114201 CN201320114201 CN 201320114201 CN 201320114201 U CN201320114201 U CN 201320114201U CN 203249972 U CN203249972 U CN 203249972U
- Authority
- CN
- China
- Prior art keywords
- mutual inductor
- sampling
- electronic mutual
- system based
- high precision
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a transient state waveform analysis system based on an electronic mutual inductor. The transient state waveform analysis system based on the electronic mutual inductor comprises an electronic mutual inductor device, a high-precision sampling device and a waveform analyzing device, wherein the electronic mutual inductor device is connected with the high-precision sampling device via an optical fiber, the high-precision sampling device is connected with the waveform analyzing device via the optical fiber, and the electronic mutual inductor device 1 is also connected with a bus AC voltage input module via a circuit. The transient state waveform analysis system based on the electronic mutual inductor of the utility model overcomes the disadvantages that the conventional mutual inductor can not provide a higher sampling precision and time response, thereby solving the sampling precision and time response problems. Moreover, the waveform analyzing device can save the data into a comtrade file format for the subsequent analysis and check, and also can provide the comtrade file format data to other mainstream manufacturer analysis systems as a data source.
Description
Technical field
The utility model relates to a kind of transient-wave analytic system based on electronic mutual inductor.
Background technology
Electronic mutual inductor is electrical network important main equipment once, and they are undertaking accurately " measuring and metering " of electrical network, and the effect of fault " monitoring ".Require the operation of power networks parameter height of measurement accurate; Device itself should have suitable reliability.It is for intelligent grid, digital relay protection, the real-time PMU of electrical network, WAMS, electrical network fast state are estimated, the application in electrical network of the corona measurement of Power Network Transient Stability monitoring, UHV transmission line, electrical network Real-time Economic Dispatch, harmonic wave, alleviation that grid power transmission blocks, solve transmission of electricity corridor problem the phase-splitting technology of transmission of electricity, realize that fault localization and a smart machine of compact etc. provide Reliable guarantee accurately.Modern power network operation and equipment revolution are played an important role.Therefore, require it must have the high-performance of high accuracy, rapid data transmission.
At present, use traditional mutual inductor as analog quantity (electric current, voltage) sampling apparatus, in the air switch making process, the tradition mutual inductor gathers electric current and the magnitude of voltage of this moment immediately, and gather the display waveform signal by oscillograph, in the transients of closing a floodgate to higher requirement is arranged time response of sampling precision, sampling.Under the technical conditions of present traditional mutual inductor, can not satisfy field requirement.
The utility model content
The purpose of this utility model has been to provide a kind of transient-wave analytic system based on electronic mutual inductor, overcome traditional mutual inductor higher sampling precision and the shortcoming of time response can not be provided, the utility model utilizes based on electronic mutual inductor and high precision photoelectric conversion sampling apparatus, high accuracy data sampling that can be under switch motion moment, a kind of waveform parsing system of analyzing for SMV9-2 message capturing among the IEC61850 by the daemon software treatment technology.Not only can solve sampling precision and time response, and the wave form analysis device can preserve into the comtrade file layout to data, can be used as ex-post analysis and check, also can offer other main flow producer analytic systems as data source.
In order to achieve the above object, the technical solution of the utility model is:
A kind of transient-wave analytic system based on electronic mutual inductor comprises electronic mutual inductor apparatus, sampling with high precision device and wave form analysis device; Wherein said electronic mutual inductor apparatus links to each other with the sampling with high precision device by optical fiber; Described sampling with high precision device links to each other with the wave form analysis device by optical fiber; By described electronic mutual inductor apparatus receiver voltage signal.
Described electronic mutual inductor apparatus comprises sensing head parts and combiner OEMU; The sensing head parts comprise serial inductive voltage divider, Rogowski coil and collector OESC in shown in described sensing head parts comprise; Described serial inductive voltage divider one end ground connection, the other end links to each other with collector OESC with bus ac voltage signal load module respectively by circuit; Described Rogowski coil links to each other with collector OESC by circuit; Described collector OESC links to each other with combiner OEMU by optical fiber; Described combiner OEMU links to each other with the sampling with high precision device by optical fiber.
Described Rogowski coil comprises to be measured with Rogowski coil and protection Rogowski coil; Described coil comprises measuring with the Rogowski coil and links to each other with collector OESC by circuit respectively with the Rogowski coil with protection.
Described sampling with high precision device comprises CPU module and interface; Described CPU module comprises FPGA processor, host CPU processor, monitors the CPU processor; Wherein said host CPU processor is connected with the FPGA processor is two-way by circuit; Described FPGA processor is connected with the dual port RAM driver is two-way by virtual link; Described dual port RAM driver links to each other with user application by monitoring the CPU processor; Described interface comprises 12 mutual inductor input/output interface S1-S12, sampling value message output interface NET, and clock input interface SYNC; Described sampling value message output interface NET links to each other with the wave form analysis device by optical fiber.
The CPLD of the EPM3256 type of described FPGA processor adopting Altera and EP1C6 type FPGA; The BF-532 chip of described host CPU processor adopting ADSP; Described supervision CPU processor adopting is ground magnificent PCM-3350/PC104 card.
Described wave form analysis device adopts the multicast message that packet technology is analyzed the output of sampling with high precision device of catching based on winpcap; Described wave form analysis device adopts the comtrade form to preserve analysis result.
The beneficial effects of the utility model are: a kind of transient-wave analytic system based on electronic mutual inductor of the present utility model, utilization is based on electronic mutual inductor and high precision photoelectric conversion sampling apparatus, high accuracy data sampling that can be under switch motion moment, by a kind of waveform parsing system of daemon software treatment technology for SMV9-2 message capturing analysis among the IEC61850, not only can solve sampling precision and time response, and the wave form analysis device can be preserved into the comtrade file layout to data, can be used as ex-post analysis and check, also can offer other main flow producer analytic systems as data source.The utility model converts light signal to bus current voltage to through electric mutual inductor, through sampling with high precision device sampling secondary current voltage, export simultaneously sampling value message, the wave form analysis device is caught and analytical sampling value message by software engineering, simultaneously real-time display waveform and Wave data, and can automatically preserve analysis result according to trigger condition.Have the following advantages: 1) adopted the preposition Sampling techniques of photo-electricity mutual-inductor and sampling with high precision device, can guarantee accuracy and the reliability of data in the situation of high sampling rate, improved precision and the anti-interference of sampling, improved operating personnel's security.2) the Rogowski coil in the electronic mutual inductor apparatus of the present utility model is realized the large electric current progress of disease; make the advantages such as it has without magnetic saturation, frequency response range is wide, precision is high, transient characterisitics are good, be conducive to the realization of novel protected principle and improve protective value.The current transformer accuracy of measurement can reach 0.1 grade, and protection can reach the 5TPE level.Electronic type voltage transformer has adopted the serial inductive voltage divider, and accuracy of measurement reaches 0.2 grade, and has solved the problem that ferroresonance may appear in conventional voltage transformer (VT).The inner collector of electronic mutual inductor apparatus is in the structure member with the equipotential airtight shielding of measured signal, and collector links to each other by optical fiber with combiner, and digital signal is transmitted in optical cable, has strengthened anti-EMI performance, and data reliability improves greatly.The photo-electricity mutual-inductor of electronic mutual inductor apparatus connects the high-low pressure part of mutual inductor by optical fiber, and insulation system is greatly simple, has substituted oil or the SF6 of traditional mutual inductor with insulation fat, and the mutual inductor performance is more stable; The accidents such as combustion explosion that it has thoroughly avoided oil-filled mutual inductor to occur without the oil design.3) sampling with high precision device of the present utility model comprises a CPU processing unit, there is host CPU this unit, monitors CPU and three processors of FPGA, monitor that CPU is used for monitoring the duty of host CPU, when the host CPU operation irregularity, monitor that CPU can send alarm signal by power module; FPGA is responsible for the high speed transmitting-receiving of sampled data, has guaranteed the stability of system works and data sampling accurately and reliably.The sampling with high precision device adopts DL/T 860.92(IEC 61850-9-2), GB/T 20840.8(IEC 60044-8) or the message format of the extendible IEC 60044-8 regulation of passage, the intelligent electronic devices output sampled values such as protection in the station, observing and controlling, metering, record ripple, PMU; Can receive the synchronizing signal of the reference clocks such as B code, PPS and 1588, synchronization accuracy is less than 1 μ s, and has punctual function, lose synchronizing clock signals 10min with interior time keeping error less than 4 μ s; Hardware itself that install or the mistake of communication aspects are carried out self check, can record and have power down the self check event and keep function.The event of record comprises: the critical events such as electric mutual inductor channel failure, sampling step-out, network interruption.The sampling with high precision device possesses the fault warning function, can send warning content by GOOSE when plant failure, and outputting alarm contact and locking contact.The sampling with high precision device possesses the led state Presentation Function, possesses the LED Presentation Functions such as device running status, channel status.The sampling with high precision device provides the pulse per second (PPS) test signal, possesses PPS output test interface, is used for synchronization accuracy and the punctual precision of proving installation.The sampling with high precision device can by GOOSE or this locality open into, gather the position signals such as isolating switch, disconnecting link, and possess busbar voltage function arranged side by side.The sampling with high precision device provides manually puts several functions, can be by the man-machine interface of device panel when device is in debugging mode, and each road alternating voltage that setting is exported or the amplitude of current sampling data and Status Flag etc. make things convenient for uniting and adjustment.Utilize the winpcap technology to the catching of sampling value message, can guarantee under the high precision high sampling rate, message to be carried out the complete record of catching, and simultaneously can the accurate analysis sampling value message.Utilize multithreading, can be when analyzing message real-time display waveform, effective value and phase angle.The analysis result file of comtrade form is provided, and its versatility makes things convenient for all wave form analysis softwares to open and use.4) waveform parsing system provides automatic triggering and manual triggers function, according to trigger condition, Wave data is carried out the preservation of comtrade form, and provide the off-line analysis function, can carry out labor to the comtrade file of preserving, and provide at software interface waveform is carried out associative operation, as: amplify, dwindle, drag, passage merges contrast; Show the fundamental analysis functions such as instantaneous value, effective value, amplitude, phase angle, harmonic wave; Advanced analysis functions such as carrying out vector analysis, sequence component analysis, fault analysis, impedance analysis also is provided.5) critical piece of the utility model device all is the application of adopting cheap optical fiber cable, greatly reduces the Integrated using cost, the inside experimental system access of applicable all intelligent substations, testing station, scientific research institutions.
Description of drawings
Fig. 1 is the functional unit composition figure of the transient-wave analytic system based on electronic mutual inductor of the present utility model;
Fig. 2 is the sampling with high precision device CPU processor core communication architecture figure of the transient-wave analytic system based on electronic mutual inductor of the present utility model;
Fig. 3 is a switch closure experimental applications connection layout that is used for the testing station based on the transient-wave analytic system of electronic mutual inductor of the present utility model;
Electric mutual inductor wave form analysis device transient-wave figure of the present utility model when Fig. 4 is switch closure;
Tradition mutual inductor oscillograph transient-wave figure when Fig. 5 is switch closure;
Fig. 6 is the principle of work block diagram of electronic mutual inductor of the present utility model;
Fig. 7 is the wiring arrangenent diagram of sampling with high precision device of the present utility model.
Embodiment
Such as Fig. 1, Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Figure 7, be applied in a kind of transient-wave analytic system based on electronic mutual inductor, comprise electronic mutual inductor apparatus 1, sampling with high precision device 2 and wave form analysis device 3; Wherein said electronic mutual inductor apparatus 1 links to each other with sampling with high precision device 2 by optical fiber; Described electronic mutual inductor apparatus 1 also links to each other with bus alternating voltage load module 4 by circuit.Electronic mutual inductor apparatus (electronic type photoelectric current voltage transformer (VT) is called for short " photo-electricity mutual-inductor ") the 1st utilizes the Rogowski coil of electromagnetic induction principle and the hybrid AC current-voltage transformer that the Cascade capacitive divider is realized.As shown in Figure 3, electronic mutual inductor apparatus 1 comprises sensing head parts 10 and combiner (OEMU) 5; Described sensing head parts 15 comprise serial inductive voltage divider 6, Rogowski coil and collector (OESC) 7; Described serial inductive voltage divider one end ground connection, the other end links to each other with collector (OESC) 7 with bus ac voltage signal load module 4 respectively by circuit; Described Rogowski coil links to each other with collector (OESC) 7 by circuit; Described Rogowski coil comprises to be measured with Rogowski coil 8 and protection Rogowski coil 9; Described measurement links to each other with collector (OESC) 7 by circuit respectively with the Rogowski coil with protection with the Rogowski coil; Described collector (OESC) 7 links to each other with combiner (OEMU) 5 by optical fiber; Described combiner (OEMU) 5 links to each other with sampling with high precision device 2 by optical fiber.Sensing head parts 10 and power equipment primary side part equipotential, the voltage and current analog quantity of collection is directly changed into digital signal by collector (OESC) 7.The digital data transmission that collector (OESC) 7 and combiner (OEMU) are 5 is all undertaken by optical fiber.Sensing head parts 10 are because after having used serial inductive voltage divider 6 and Rogowski coil, so that electronic mutual inductor apparatus 1 can be applicable to straight-flow system, so that the electronic mutual inductor scope of application is extensive.Described sampling with high precision device 2 links to each other with wave form analysis device 3 by optical fiber; Described sampling with high precision device 2 comprises CPU module and interface; Described CPU module is the core of device, mainly is responsible for the AD sampling of device, synchronously and the processing of digital data, and described CPU module comprises FPGA processor 18, host CPU processor 19, monitors CPU processor 15; Wherein said host CPU processor 19 is by circuit and 18 two-way connections of FPGA processor; Described FPGA processor 18 is by virtual link and 17 two-way connections of dual port RAM driver; Described dual port RAM driver 17 links to each other with user application 16 by monitoring CPU processor 15.Wherein by FPGA processor 18 virtual construct dual port RAMs, formulate corresponding arbitration control protocol and dual port RAM driver 17, realize host CPU and monitor that the real time high-speed between CPU communicates by letter with low system overhead, low cost; As shown in Figure 2, described host CPU processor 19 adopts the BF-532 chip of ADSP, its core work frequency is 400MHz, and data and instruction cache, memory management unit (MMU) are arranged, and the communication interfaces such as 100M/10M Ethernet, HDLC, UART, SPI, I2C can be provided.Described supervision CPU processor 15 adopts and grinds magnificent PCM-3350/PC104 card, the PC104 card is a kind of embedded integrated circuit board of the standard based on the PC/104 bus, with traditional PC system compatible, it not only possesses all functions of common PC system substantially, also have small size, low-power consumption, open and industrial specification high reliability, with the advantages such as isa bus of PC compatibility.This PC104 card is used for monitoring the duty of host CPU processor 19, when host CPU processor 19 operation irregularity, monitors that CPU processor 15 can send alarm signal by the power supply module.Described FPGA processor 18 adopts CPLD and the EP1C6 type FPGA of the EPM3256 type of Altera, and FPGA processor 18 is responsible for the high speed transmitting-receiving of sampled data.Described interface comprises 12 mutual inductor input/output interface S1-S12, sampling value message output interface (NET) 11 and SYNC clock input interface; Described sampling value message output interface (NET) 11 links to each other with wave form analysis device 3 by optical fiber.S1-S12 is the mutual inductor input/output interface, NET is the sampling value message output interface, sampling value message is exported to the wave form analysis device through sampling value message output interface (NET) 11, wave form analysis device sampled data post analysis, show in real time, the storage data, and off-line analysis is provided, SYNC clock input interface, be used for taking from outside GPS to the time signal as the source of system clock.Described wave form analysis device 3 adopts the multicast message that packet technology is analyzed the output of sampling with high precision device of catching based on winpcap; Described wave form analysis device adopts the comtrade form to preserve analysis result.
Present embodiment is obtained the voltage signal of bus ac voltage signal input 4 inputs by electronic mutual inductor apparatus 1, become light signal through the internal conversion cell translation, export to sampling with high precision device 2, sampling with high precision device 2 converts SMV9-2 network multicast message to through data processing packing and exports to wave form analysis device 3, wave form analysis device 3 utilizes winpcap to catch packet technology, analysis is from the multicast message of sampling with high precision device 2 outputs, and by graphical display technics, real-time display waveform and Wave data; And preserve into the analysis result of comtrade form, convenient afterwards off-line analysis according to trigger condition.
As shown in Figure 4, the waveform that the system of application present embodiment switch motion carries out instantaneous disconnection closed procedure in experiment centre is monitored.During work, by switch control unit 12 Closing Switch, electronic mutual inductor apparatus 1 and traditional mutual inductor 13 are obtained bus current, voltage respectively with in the bus current voltage module 4, again through sampling with high precision device 2 output sampling value messages, after wave form analysis device 3 is obtained sampling value message, process through data analysis, show in real time waveform and waveform parameter by electronic mutual inductor apparatus 1 and traditional mutual inductor 13.Setting under the trigger condition, switch control unit 12 gauge tap disconnect, preserve Wave data according to trigger condition, and can carry out Wave data off-line analysis to preserving, by the Wave data of preserving, can contrast the shape differences of electronic mutual inductor apparatus 1 and traditional mutual inductor 13, can find out intuitively that two kinds of mutual inductors switch closure under sampling with high precision disconnects the transient-wave of moment.Fig. 3 has only drawn one road electric current and one road voltage, can connect three road electric currents and three road voltages in the practical application, and can self-produced zero-sequence current and residual voltage.The transient-wave of electronic mutual inductor apparatus 1 as shown in Figure 4 during switch closure; The transient-wave of tradition mutual inductor 13 as shown in Figure 5 during switch closure.
The device of lifting in the present embodiment is non-limiting unique product form of the present utility model also also.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
A kind of transient-wave analytic system based on electronic mutual inductor of present embodiment, utilization is based on electronic mutual inductor and high precision photoelectric conversion sampling apparatus, high accuracy data sampling that can be under switch motion moment, by a kind of waveform parsing system of daemon software treatment technology for SMV9-2 message capturing analysis among the IEC61850, not only can solve sampling precision and time response, and the wave form analysis device can be preserved into the comtrade file layout to data, can be used as ex-post analysis and check, also can offer other main flow producer analytic systems as data source.Present embodiment converts light signal to bus current voltage to through electric mutual inductor, through sampling with high precision device sampling secondary current voltage, export simultaneously sampling value message, the wave form analysis device is caught and analytical sampling value message by software engineering, simultaneously real-time display waveform and Wave data, and can automatically preserve analysis result according to trigger condition.Have the following advantages: 1) adopted the preposition Sampling techniques of photo-electricity mutual-inductor and sampling with high precision device, can guarantee accuracy and the reliability of data in the situation of high sampling rate, improved precision and the anti-interference of sampling, improved operating personnel's security.2) the Rogowski coil in the electronic mutual inductor apparatus of present embodiment is realized the large electric current progress of disease; make the advantages such as it has without magnetic saturation, frequency response range is wide, precision is high, transient characterisitics are good, be conducive to the realization of novel protected principle and improve protective value.The current transformer accuracy of measurement can reach 0.1 grade, and protection can reach the 5TPE level.Electronic type voltage transformer has adopted the serial inductive voltage divider, and accuracy of measurement reaches 0.2 grade, and has solved the problem that ferroresonance may appear in conventional voltage transformer (VT).The inner collector of electronic mutual inductor apparatus is in the structure member with the equipotential airtight shielding of measured signal, and collector links to each other by optical fiber with combiner, and digital signal is transmitted in optical cable, has strengthened anti-EMI performance, and data reliability improves greatly.The photo-electricity mutual-inductor of electronic mutual inductor apparatus connects the high-low pressure part of mutual inductor by optical fiber, and insulation system is greatly simple, has substituted oil or the SF6 of traditional mutual inductor with insulation fat, and the mutual inductor performance is more stable; The accidents such as combustion explosion that it has thoroughly avoided oil-filled mutual inductor to occur without the oil design.3) the sampling with high precision device of present embodiment comprises a CPU processing unit, there is host CPU this unit, monitors CPU and three processors of FPGA, monitor that CPU is used for monitoring the duty of host CPU, when the host CPU operation irregularity, monitor that CPU can send alarm signal by power module; FPGA is responsible for the high speed transmitting-receiving of sampled data, has guaranteed the stability of system works and data sampling accurately and reliably.The sampling with high precision device adopts DL/T 860.92(IEC 61850-9-2), GB/T 20840.8(IEC 60044-8) or the message format of the extendible IEC 60044-8 regulation of passage, the intelligent electronic devices output sampled values such as protection in the station, observing and controlling, metering, record ripple, PMU; Can receive the synchronizing signal of the reference clocks such as B code, PPS and 1588, synchronization accuracy is less than 1 μ s, and has punctual function, lose synchronizing clock signals 10min with interior time keeping error less than 4 μ s; Hardware itself that install or the mistake of communication aspects are carried out self check, can record and have power down the self check event and keep function.The event of record comprises: the critical events such as electric mutual inductor channel failure, sampling step-out, network interruption.The sampling with high precision device possesses the fault warning function, can send warning content by GOOSE when plant failure, and outputting alarm contact and locking contact.The sampling with high precision device possesses the led state Presentation Function, possesses the LED Presentation Functions such as device running status, channel status.The sampling with high precision device provides the pulse per second (PPS) test signal, possesses PPS output test interface, is used for synchronization accuracy and the punctual precision of proving installation.The sampling with high precision device can by GOOSE or this locality open into, gather the position signals such as isolating switch, disconnecting link, and possess busbar voltage function arranged side by side.The sampling with high precision device provides manually puts several functions, can be by the man-machine interface of device panel when device is in debugging mode, and each road alternating voltage that setting is exported or the amplitude of current sampling data and Status Flag etc. make things convenient for uniting and adjustment.Utilize the winpcap technology to the catching of sampling value message, can guarantee under the high precision high sampling rate, message to be carried out the complete record of catching, and simultaneously can the accurate analysis sampling value message.Utilize multithreading, can be when analyzing message real-time display waveform, effective value and phase angle.The analysis result file of comtrade form is provided, and its versatility makes things convenient for all wave form analysis softwares to open and use.4) waveform parsing system provides automatic triggering and manual triggers function, according to trigger condition, Wave data is carried out the preservation of comtrade form, and provide the off-line analysis function, can carry out labor to the comtrade file of preserving, and provide at software interface waveform is carried out associative operation, as: amplify, dwindle, drag, passage merges contrast; Show the fundamental analysis functions such as instantaneous value, effective value, amplitude, phase angle, harmonic wave; Advanced analysis functions such as carrying out vector analysis, sequence component analysis, fault analysis, impedance analysis also is provided.5) critical piece of present embodiment all is the application of adopting cheap optical fiber cable, greatly reduces the Integrated using cost, the inside experimental system access of applicable at present all intelligent substations, testing station, scientific research institutions.
Claims (5)
1. the transient-wave analytic system based on electronic mutual inductor is characterized in that comprising electronic mutual inductor apparatus (1), sampling with high precision device (2) and wave form analysis device (3); Wherein said electronic mutual inductor apparatus (1) links to each other with sampling with high precision device (2) by optical fiber; Described sampling with high precision device (2) links to each other with wave form analysis device (3) by optical fiber; Described electronic mutual inductor apparatus (1) also links to each other with bus alternating voltage load module (4) by circuit.
2. a kind of transient-wave analytic system based on electronic mutual inductor according to claim 1 is characterized in that described electronic mutual inductor apparatus (1) comprises sensing head parts (10) and combiner OEMU(5); Described sensing head parts (10) comprise serial inductive voltage divider (6), Rogowski coil and collector OESC(7); Described serial inductive voltage divider (6) one end ground connection, the other end by circuit respectively with bus ac voltage signal load module (4) and collector OESC(7) link to each other; Described Rogowski coil is by circuit and collector OESC(7) link to each other; Described collector OESC(7) by optical fiber and combiner OEMU(5) link to each other; Described combiner OEMU(5) links to each other with sampling with high precision device (2) by optical fiber.
3. a kind of transient-wave analytic system based on electronic mutual inductor according to claim 2 is characterized in that described Rogowski coil comprises measurement Rogowski coil (8) and protection Rogowski coil (9); Described measurement is used Rogowski coil (8) and is protected with Rogowski coil (9) respectively by circuit and collector OESC(7) link to each other.
4. a kind of transient-wave analytic system based on electronic mutual inductor according to claim 1 is characterized in that described sampling with high precision device (2) comprises CPU module and interface; Described CPU module comprises FPGA processor (18), host CPU processor (19), monitors CPU processor (15); Wherein said host CPU processor (19) is by circuit and two-way connection of FPGA processor (18); Described FPGA processor (18) is by virtual construct and two-way connection of dual port RAM driver (17); Described dual port RAM driver (17) links to each other with user application (16) by monitoring CPU processor (15); Described interface comprises 12 mutual inductor input/output interface S1-S12, sampling value message output interface NET(11) and SYNC clock input interface; Described sampling value message output interface NET(11) links to each other with wave form analysis device (3) by optical fiber; Described SYNC clock input interface be used for taking from outside GPS to the time signal as the source of system clock.
5. a kind of transient-wave analytic system based on electronic mutual inductor according to claim 4 is characterized in that described FPGA processor (18) adopts CPLD and the EP1C6 type FPGA of EPM3256 type; Described host CPU processor (19) adopts the BF-532 chip; Described supervision CPU processor (15) adopts the PCM-3350/PC104 card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320114201 CN203249972U (en) | 2013-03-13 | 2013-03-13 | Transient state waveform analysis system based on electronic mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320114201 CN203249972U (en) | 2013-03-13 | 2013-03-13 | Transient state waveform analysis system based on electronic mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203249972U true CN203249972U (en) | 2013-10-23 |
Family
ID=49376405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320114201 Expired - Lifetime CN203249972U (en) | 2013-03-13 | 2013-03-13 | Transient state waveform analysis system based on electronic mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203249972U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149485A (en) * | 2013-03-13 | 2013-06-12 | 绍兴电力局 | Transient-state waveform analysis system based on electronic mutual inductor |
| CN107727910A (en) * | 2017-09-29 | 2018-02-23 | 国网吉林省电力有限公司电力科学研究院 | A kind of transformer station's current synchronization harvester based on active electronic type instrument transformer |
-
2013
- 2013-03-13 CN CN 201320114201 patent/CN203249972U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149485A (en) * | 2013-03-13 | 2013-06-12 | 绍兴电力局 | Transient-state waveform analysis system based on electronic mutual inductor |
| CN103149485B (en) * | 2013-03-13 | 2015-09-30 | 绍兴电力局 | A kind of transient-wave analytic system based on electronic mutual inductor |
| CN107727910A (en) * | 2017-09-29 | 2018-02-23 | 国网吉林省电力有限公司电力科学研究院 | A kind of transformer station's current synchronization harvester based on active electronic type instrument transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102937685B (en) | The integrated testing platform of a kind of transformer station based on Real-time Simulation Technology | |
| CN204731317U (en) | A kind of intelligentized earth resistance tester | |
| CN103744417A (en) | Multifunctional integrated measurement and control apparatus and system for intelligent transformer station | |
| CN102437650A (en) | Intelligent electric power distribution system | |
| CN201256292Y (en) | GIS digital interval observing and controlling device | |
| CN102707135A (en) | Lightning current online monitoring system of overhead transmission line based on differential ring | |
| CN104898580A (en) | Wireless oil pumping unit controller with three-phase electric acquisition | |
| CN204089167U (en) | A kind of box type transformer protection supervisory equipment | |
| CN203800700U (en) | Power distribution network monitoring system | |
| CN203249972U (en) | Transient state waveform analysis system based on electronic mutual inductor | |
| CN202475013U (en) | Intelligent power distribution device | |
| CN204925226U (en) | Blocking device is gathered to high voltage live display wide region | |
| CN103149485B (en) | A kind of transient-wave analytic system based on electronic mutual inductor | |
| CN202503362U (en) | Distribution terminal unit integrating measurement, control and protection for intelligent distribution network | |
| CN104142648A (en) | Management and control terminal of urban rail traffic low-voltage power distribution system | |
| CN210639226U (en) | Fault diagnosis, measurement and control integrated device | |
| CN207424224U (en) | A kind of device for possessing on-line monitoring exchange and scurrying into DC power system function | |
| CN202975211U (en) | Photoelectric trigger device for transient disturbance test of transformer substation | |
| CN103310627B (en) | Carrier failure analyser and detection method thereof | |
| CN203324432U (en) | Novel insulation online monitoring system for high-voltage capacitive electrical equipment | |
| CN102946092B (en) | A kind of line transformer protective device with breaker tripping and closing current measurement | |
| CN201682274U (en) | Intelligent explosion-proof switch integrated protector | |
| CN205070606U (en) | Novel DTU and distribution network automation system for distribution network automation | |
| CN201860126U (en) | Monitoring protection comprehensive device of low voltage unit | |
| CN203119456U (en) | Adaptive feeder protection device based on wavelet decomposition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131023 |