CN107132501A - Electronic mutual inductor verification system and calibration method - Google Patents

Electronic mutual inductor verification system and calibration method Download PDF

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Publication number
CN107132501A
CN107132501A CN201710490089.8A CN201710490089A CN107132501A CN 107132501 A CN107132501 A CN 107132501A CN 201710490089 A CN201710490089 A CN 201710490089A CN 107132501 A CN107132501 A CN 107132501A
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China
Prior art keywords
electronic
mutual inductor
transformer
current
winding
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Pending
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CN201710490089.8A
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Chinese (zh)
Inventor
赵屹涛
田勇
杨志峰
李冬芳
闫宪峰
冀兰风
弓建军
任秀伟
李青
李开成
张松琛
刘沙
连慧峰
卢嘉栋
梁新帅
庞国庆
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Shanxi Transformer Electrical Measurement Equipment Co Ltd
Shanxi Institute of Mechanical and Electrical Engineering
Original Assignee
Shanxi Transformer Electrical Measurement Equipment Co Ltd
Shanxi Institute of Mechanical and Electrical Engineering
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Application filed by Shanxi Transformer Electrical Measurement Equipment Co Ltd, Shanxi Institute of Mechanical and Electrical Engineering filed Critical Shanxi Transformer Electrical Measurement Equipment Co Ltd
Priority to CN201710490089.8A priority Critical patent/CN107132501A/en
Publication of CN107132501A publication Critical patent/CN107132501A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00Testing or calibrating of apparatus covered by the other groups of this subclass
    • G01R35/02Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere

Abstract

Electronic mutual inductor verification system and calibration method of the present invention, belong to electronic mutual inductor detection technique field, mainly solve the test problems of electronic mutual inductor;Including electronic current mutual inductor verification system and electronic type voltage transformer verification system, it is characterized in:The electronic current mutual inductor verification system includes band current lifting device standard current transformer, tested electronic current mutual inductor system, electronic transducer calibration instrument, synchronised clock optical fiber and communication optical fiber;The electronic transducer calibration instrument includes data acquisition unit, data/address bus, labview verifications platform, sampling resistor, electric current conversion secondary winding and electric current conversion first winding;The electronic type voltage transformer verification system includes band booster standard potential transformer, tested electronic type voltage transformer system and electronic transducer calibration instrument.The calibrating that platform realizes electronic mutual inductor system using Fourier transformation processing, analysis is verified by labview, traceability is preferable.

Description

Electronic mutual inductor verification system and calibration method
Technical field
The invention belongs to electronic mutual inductor detection technique field, and in particular to electronic mutual inductor verification system and calibrating Method.
Background technology
Electronic mutual inductor calibrating is main to include calibrating electronic current mutual inductor and electronic type voltage transformer.
With the popularization of digital transformer substation and intelligent grid, electronic mutual inductor has obtained very fast development.Electricity The secondary output of minor transformer carries out digital quantity transmission by combining unit using optical fiber, and the mode of digital output follows state Mark the standards such as the IEC60044-7/8 and IEC61850-9 of the promulgation of the electrician committee.Electronic mutual inductor verification system be used for pair The ratio difference and phase difference of electronic mutual inductor are examined and determine.
At present, the sex chromosome mosaicism of tracing to the source of electronic type transformer checking system measurement accuracy is puzzlement electronic mutual inductor detection skill The a great problem in art field.
The content of the invention
There is provided electronic mutual inductor calibrating system for the problem of being traced to the source present invention mainly solves electronic mutual inductor to higher precision System and calibration method.
The present invention adopts the technical scheme that to solve above-mentioned technical problem:
Electronic mutual inductor verification system, including electronic current mutual inductor verification system and electronic type voltage transformer inspection Determine system, be characterized in:The electronic current mutual inductor verification system includes band current lifting device standard current transformer, tested electricity Type current transformer system, electronic transducer calibration instrument, synchronised clock optical fiber and communication optical fiber, the band current lifting device standard Current transformer includes standard current transformer first winding, standard current transformer secondary winding;The tested electronic type electricity Current transformer system includes electronic current mutual inductor, electronic current mutual inductor data transmission fiber, a combining unit;Institute Electronic transducer calibration instrument is stated including data acquisition unit, data/address bus, labview verifications platform, sampling resistor, electric current to turn Change secondary winding and electric current conversion first winding;By the electronics between the electronic current mutual inductor and a combining unit Formula current transformer data transmission fiber is attached;
The head end of the standard current transformer first winding and the wiring end of electronic current mutual inductor are connected, described The end of standard current transformer first winding and the wiring head end of electronic current mutual inductor are connected;The normalized current mutual inductance The first and last end of device up-flow winding is connected with the output end of pressure regulator respectively;The first and last end difference of standard current transformer secondary winding The first and last end for changing first winding with the electric current of electronic transducer calibration instrument is connected;The sampling resistor is connected in parallel on electric current conversion Between the first and last end of secondary winding, the first and last end of the electric current conversion secondary winding and the electric current input first and last of data acquisition unit End connection;The labview verifications platform is connected by data/address bus with data acquisition unit;The labview verifies platform It is connected by communication optical fiber with a combining unit;The synchronised clock interface of data acquisition unit is synchronous with combining unit Clock interface is attached by synchronised clock optical fiber;
The electronic type voltage transformer verification system includes band booster standard potential transformer, tested electronic type voltage Transformer system, electronic transducer calibration instrument, synchronised clock optical fiber and communication optical fiber;The band booster normal voltage mutual inductance Device includes standard potential transformer secondary winding, standard potential transformer first winding;The standard potential transformer once around The head end of group and the wiring head end of electronic type voltage transformer are connected, end and the electricity of the standard potential transformer first winding The wiring end connection of minor voltage transformer;The tested electronic type voltage transformer system includes electronic type voltage mutual inductance Device, electronic type voltage transformer data transmission fiber and No. two combining units;The electronic transducer calibration instrument includes data Collecting unit, labview verifications platform, voltage conversion secondary winding and voltage conversion first winding;
The head end of the standard potential transformer first winding and the wiring head end of electronic type voltage transformer are connected, described The end of standard potential transformer first winding and the wiring end of electronic type voltage transformer are connected, and are grounded simultaneously;It is described The first and last end of standard potential transformer boosting winding is connected with the output end of pressure regulator respectively;Standard potential transformer secondary winding First and last end be connected respectively with the input first and last end of the voltage conversion first winding of electronic transducer calibration instrument;The voltage The first and last end of conversion secondary winding is connected with the voltage input end first and last end of the data acquisition unit;The labview verifications Platform is connected by data/address bus with data acquisition unit;The labview verifications platform is merged by communication optical fiber with No. two Unit is connected;The synchronised clock interface of data acquisition unit and the synchronised clock interface of No. two combining units are by synchronised clock optical fiber It is attached;By the electronic type voltage transformer data transfer between the electronic type voltage transformer and No. two combining units Optical fiber is attached.
Electronic mutual inductor system calibration method, specific verification step is as follows:
The first step:Tested electronic mutual inductor is inputted on the guidance panel of electronic transducer calibration instrument specified once Value, the method for synchronization, data channel, current/voltage the mode option;The electronic mutual inductor refer to electronic current mutual inductor or Electronic type voltage transformer;
Second step:When selecting current-mode, wiring head end and the normalized current mutual inductance of electronic current mutual inductor are tested The end of device first winding is connected, and is tested wiring end and the standard current transformer first winding of electronic current mutual inductor Head end is connected, the first and last end of standard current transformer secondary winding respectively with the electric current conversion of electronic transducer calibration instrument once The first and last end connection of winding;
When select voltage mode when, be tested electronic type voltage transformer wiring head end and standard potential transformer once around The head end of group is connected, and the wiring end and the end of standard potential transformer first winding of tested electronic type voltage transformer connect It is logical, and be grounded simultaneously;The first and last end of standard potential transformer secondary winding turns with the voltage of electronic transducer calibration instrument respectively Change the input first and last end connection of first winding;
3rd step:The converted winding of electronic transducer calibration instrument carries out standard figures message sample, and is transferred to electronics The data acquisition unit of formula mutual-inductor tester, and data acquisition unit is carried out with labview verification platforms by data/address bus Information transfer;The conversion winding refers to electric current conversion winding or voltage conversion winding;
4th step:The data of tested electronic mutual inductor system are handled by combining unit packing, combining unit and electronic type Optical-fibre communications, including combining unit synchronised clock and electronic mutual inductor system are used between tester measured data receiving unit Transient data;Data acquisition unit is transmitted with labview verification platforms using Ethernet protocol;The tested electronic type mutual inductance Device system refers to tested electronic current mutual inductor system or tested electronic type voltage transformer system;
5th step:The tested electronic mutual inductor system data and the 3rd that platform receives the 4th step is verified by labview The normal data that pacing is obtained is compared analysis, obtains the error information of tested electronic mutual inductor system;
6th step:By adjusting pressure regulator output voltage, while in measuring requirement rated point to tested electronic type mutual inductance Device system and standard mutual inductor are powered, and measure tested electronic mutual inductor rated point error information;
Data acquisition unit realizes analog-to-digital conversion using 24 collectors;
Labview verification platforms are handled using Fourier transformation, analyze the calibrating for realizing electronic mutual inductor system.
The present invention compared with prior art, has the advantages that:
Electronic mutual inductor verification system of the present invention, the wiring of electronic mutual inductor first winding is using traditional ct calibrating The mode of connection, standard mutual inductor uses high standard transformer;Standard secondary winding and combining unit data access electronic type mutual inductance Device tester;Electronic transducer calibration instrument is based on industrial computer Labview platforms, and data acquisition unit is using 24 collections Device realizes analog-to-digital conversion, is detected electronic mutual inductor system data and is transmitted using optical fiber.Strong antijamming capability, accuracy of measurement is high And traceability is good.
Brief description of the drawings
Fig. 1 is the electronic current mutual inductor verification principle assumption diagram of the present invention;
Fig. 2 is the electronic type voltage transformer verification principle assumption diagram of the present invention.
In figure:1-band current lifting device standard current transformer;1-1-standard current transformer secondary winding;1-2-standard Current transformer first winding;1-3-standard current transformer up-flow winding;1-4-pressure regulator;2-it is tested electronic current Transformer system;2-1-electronic current mutual inductor;2-2-electronic current mutual inductor data transmission fiber;2-3-No. mono- Combining unit;3-electronic transducer calibration instrument;3-1-data acquisition unit;3-2-data/address bus;3-3-labview schools Test platform;3-4-sampling resistor;3-5-electric current conversion secondary winding;3-6-electric current conversion first winding;3-7-voltage turns Change secondary winding;3-8-voltage conversion first winding;4-synchronised clock optical fiber;5-communication optical fiber;6-band booster standard Voltage transformer;6-1-standard potential transformer secondary winding;6-2-standard potential transformer first winding;6-3-standard Voltage transformer boosting winding;7-it is tested electronic type voltage transformer system;7-1-electronic type voltage transformer;7-2-electricity Minor voltage transformer data transmission fiber;7-3-No. bis- combining unit.
Note:LabVIEW (Laboratory Virtual Instrument Engineering Workbench) is a kind of Line of text is replaced to create the graphical programming language of application program with icon.LabVIEW provides many outward appearances and traditional instrument (such as Oscillograph, universal meter) similar control, it can be used to easily create user interface.Before user interface is referred to as in LabVIEW Panel.Using icon and line, the object on front panel can be controlled by programming.
Embodiment
As depicted in figs. 1 and 2, electronic mutual inductor verification system, including electronic current mutual inductor verification system and electricity Minor voltage transformer verification system, is characterized in:As shown in figure 1, the electronic current mutual inductor verification system includes band Current lifting device standard current transformer 1, tested electronic current mutual inductor system 2, electronic transducer calibration instrument 3, synchronised clock Optical fiber 4 and communication optical fiber 5, the band current lifting device standard current transformer 1 include standard current transformer first winding 1-2, mark Quasi- secondary winding in current transformer 1-1, standard current transformer up-flow winding 1-3 and pressure regulator 1-4;The tested electronic type electricity Current transformer system 2 includes electronic current mutual inductor 2-1, electronic current mutual inductor data transmission fiber 2-2, a merging Unit 2-3;The electronic transducer calibration instrument 3, which includes data acquisition unit 3-1, data/address bus 3-2, labview verification, puts down Platform 3-3, sampling resistor 3-4, electric current conversion secondary winding 3-5 and electric current conversion first winding 3-6;The electronic current mutual inductance It is attached between device 2-1 and a combining unit 2-3 by the electronic current mutual inductor data transmission fiber 2-2;
The head end L of the standard current transformer first winding 1-2O1With electronic current mutual inductor 2-1 wiring end L2Connection, the end L of the standard current transformer first winding 1-2O2With electronic current mutual inductor 2-1 wiring head end L1 Connection;Output end of the first and last end of the standard current transformer up-flow winding 1-3 respectively with pressure regulator 1-4 is connected;Standard electric The head of current transformer secondary winding 1-1 first and last end respectively with the electric current conversion first winding 3-6 of electronic transducer calibration instrument 3 End is connected;The sampling resistor 3-4 is connected in parallel between electric current conversion secondary winding 3-5 first and last end, the electric current conversion two Secondary winding 3-5 first and last end is connected with data acquisition unit 3-1 electric current input first and last end;The labview verification platforms 3-3 It is connected by data/address bus 3-2 with data acquisition unit 3-1;The labview verifications platform 3-3 passes through communication optical fiber 5 and one Number combining unit 2-3 connections;The synchronised clock of data acquisition unit 3-1 synchronised clock interface and a combining unit 2-3 connects Mouth is attached by synchronised clock optical fiber 4;
As shown in Fig. 2 the electronic type voltage transformer verification system includes band booster standard potential transformer 6, quilt Survey electronic type voltage transformer system 7, electronic transducer calibration instrument 3, synchronised clock optical fiber 4 and communication optical fiber 5;The band liter Depressor standard potential transformer 6 includes standard potential transformer secondary winding 6-1, standard potential transformer first winding 6-2, mark Quasi- voltage transformer boosting winding 6-3 and pressure regulator 1-4;
The tested electronic type voltage transformer system 7 includes electronic type voltage transformer 7-1, electronic type voltage transformer Data transmission fiber 7-2 and No. two combining unit 7-3;The electronic transducer calibration instrument 3 include data acquisition unit 3-1, Labview verification platforms 3-2, voltage conversion secondary winding 3-6 and voltage conversion first winding 3-7;
The head end A of the standard potential transformer first winding 6-2OWith electronic type voltage transformer 7-1 wiring head end Ax Connection, the end X of the standard potential transformer first winding 6-2OWith electronic type voltage transformer 7-1 wiring end XxEven Connect, and be grounded simultaneously;Output end of the first and last end of the standard potential transformer boosting winding 6-3 respectively with pressure regulator 1-4 connects Connect;Standard potential transformer secondary winding 6-1 first and last end respectively with the voltage conversion of electronic transducer calibration instrument 3 once around Group 3-8 input first and last end connection;The first and last end of the voltage conversion secondary winding 3-7 and the data acquisition unit 3-1 Voltage input end first and last end connection;The labview verifications platform 3-3 passes through data/address bus 3-2 and data acquisition unit 3-1 Connection;The labview verifications platform 3-3 is connected by communication optical fiber 5 with No. two combining unit 7-3;Data acquisition unit 3-1 The synchronised clock interface of synchronised clock interface and No. two combining unit 7-3 be attached by synchronised clock optical fiber 4;The electronics Carried out between formula voltage transformer 7-1 and No. two combining unit 7-3 by the electronic type voltage transformer data transmission fiber 7-2 Connection.
Electronic mutual inductor system calibration method, specific verification step is as follows:
The first step:Tested electronic mutual inductor is inputted on the guidance panel of electronic transducer calibration instrument 3 specified once Value, the method for synchronization, data channel, current/voltage option;The electronic mutual inductor refers to electronic current mutual inductor or electronics Formula voltage transformer;
Second step:When selecting current-mode, electronic current mutual inductor 2-1 wiring head end L is tested1And normalized current Transformer first winding 1-2 end LO2Connect, be tested electronic current mutual inductor 2-1 wiring end L2It is mutual with normalized current Sensor first winding 1-2 head end Lo1Connect, standard current transformer secondary winding 1-1 first and last end respectively with electronic type mutual inductance The electric current conversion first winding 3-6 of device tester 3 first and last end connection;
When selecting voltage mode, electronic type voltage transformer 7-1 wiring head end Ax and standard potential transformer is tested First winding 6-2 head end Ao is connected, and is tested electronic type voltage transformer 7-1 wiring end Xx and standard potential transformer one Secondary winding 6-2 end Xo is connected, standard potential transformer secondary winding 6-1 first and last end respectively with checking electronic type transformers The voltage conversion first winding 3-8 of instrument 3 input first and last end connection;
3rd step:The converted winding of electronic transducer calibration instrument 3 carries out standard figures message sample, and is transferred to electronics The data acquisition unit 3-1 of formula mutual-inductor tester 3, and data acquisition unit 3-1 and labview verifications platform 3-3 passes through number Information transfer is carried out according to bus 3-2;
4th step:The data of tested electronic mutual inductor system are handled by combining unit packing, combining unit and electronic type Optical-fibre communications, including combining unit synchronised clock and electronic mutual inductor system are used between tester measured data receiving unit Transient data;Data acquisition unit 3-1 and labview verification platform 3-3 are transmitted using Ethernet protocol;The tested electronics Formula transformer system refers to tested electronic current mutual inductor system or tested electronic type voltage transformer system;
5th step:The platform 3-3 tested electronic mutual inductor system datas that receive the 4th step and the are verified by labview The normal data that three pacings are obtained is compared analysis, obtains the error information of tested electronic mutual inductor system;
6th step:By adjusting pressure regulator output voltage, while in measuring requirement rated point to tested electronic type mutual inductance Device system and standard mutual inductor are powered, and measure tested electronic mutual inductor rated point error information.
Data acquisition unit 3-1 realizes analog-to-digital conversion using 24 collectors.
Labview verification platform 3-3 are handled using Fourier transformation, are analyzed the calibrating for realizing electronic mutual inductor system.

Claims (4)

1. electronic mutual inductor verification system, including electronic current mutual inductor verification system and electronic type voltage transformer calibrating System, it is characterized in that:The electronic current mutual inductor verification system includes band current lifting device standard current transformer (1), is tested Electronic current mutual inductor system (2), electronic transducer calibration instrument (3), synchronised clock optical fiber (4) and communication optical fiber (5), institute State band current lifting device standard current transformer (1) secondary including standard current transformer first winding (1-2), standard current transformer Winding (1-1), standard current transformer up-flow winding (1-3) and pressure regulator (1-4);The tested electronic current mutual inductor system System (2) includes electronic current mutual inductor (2-1), electronic current mutual inductor data transmission fiber (2-2), a combining unit (2-3);The electronic transducer calibration instrument (3) includes data acquisition unit (3-1), data/address bus (3-2), labview schools Test platform (3-3), sampling resistor (3-4), electric current conversion secondary winding (3-5) and electric current conversion first winding (3-6);The electricity By the electronic current mutual inductor data transmission fiber between type current transformer (2-1) and a combining unit (2-3) (2-2) is attached;
The head end L of the standard current transformer first winding (1-2)O1With the wiring end of electronic current mutual inductor (2-1) L2Connection, the end L of the standard current transformer first winding (1-2)O2Wiring with electronic current mutual inductor (2-1) is first Hold L1Connection;The first and last end of the standard current transformer up-flow winding (1-3) connects with the output end of pressure regulator (1-4) respectively Connect;One is changed with the electric current of electronic transducer calibration instrument (3) in the first and last end of standard current transformer secondary winding (1-1) respectively The first and last end connection of secondary winding (3-6);The sampling resistor (3-4) is connected in parallel on the first and last end of electric current conversion secondary winding (3-5) Between, the first and last end of the electric current conversion secondary winding (3-5) connects with the electric current input first and last end of data acquisition unit (3-1) Connect;The labview verification platforms (3-3) are connected by data/address bus (3-2) with data acquisition unit (3-1);It is described Labview verification platforms (3-3) are connected by communication optical fiber (5) with a combining unit (2-3);Data acquisition unit (3-1) Synchronised clock interface and the synchronised clock interface of a combining unit (2-3) be attached by synchronised clock optical fiber (4);
The electronic type voltage transformer verification system includes band booster standard potential transformer (6), tested electronic type voltage Transformer system (7), electronic transducer calibration instrument (3), synchronised clock optical fiber (4) and communication optical fiber (5);The band booster Standard potential transformer (6) include standard potential transformer secondary winding (6-1), standard potential transformer first winding (6-2), Standard potential transformer boosting winding (6-3) and pressure regulator (1-4);
The tested electronic type voltage transformer system (7) includes electronic type voltage transformer (7-1), electronic type voltage transformer Data transmission fiber (7-2) and No. two combining units (7-3);The electronic transducer calibration instrument (3) includes data acquisition list First (3-1), data/address bus (3-2), labview verification platforms (3-3), voltage conversion secondary winding (3-7) and voltage conversion one Secondary winding (3-8);
The head end A of the standard potential transformer first winding (6-2)OWith the wiring head end A of electronic type voltage transformer (7-1)x Connection, the end X of the standard potential transformer first winding (6-2)OWith the wiring end of electronic type voltage transformer (7-1) XxConnection, and be grounded simultaneously;The first and last end of standard potential transformer boosting winding (6-3) respectively with pressure regulator (1-4) Output end is connected;The electricity of the first and last end of standard potential transformer secondary winding (6-1) respectively with electronic transducer calibration instrument (3) The input first and last end connection of pressure conversion first winding (3-8);The first and last end of the voltage conversion secondary winding (3-7) with it is described The voltage input end first and last end connection of data acquisition unit (3-1);The labview verification platforms (3-3) pass through data/address bus (3-2) is connected with data acquisition unit (3-1);The labview verification platforms (3-3) pass through communication optical fiber (5) and No. two conjunctions And unit (7-3) is connected;The synchronised clock interface of data acquisition unit (3-1) and the synchronised clock of No. two combining units (7-3) Interface is attached by synchronised clock optical fiber (4);The electronic type voltage transformer (7-1) and No. two combining units (7-3) it Between be attached by the electronic type voltage transformer data transmission fiber (7-2).
2. electronic mutual inductor system calibration method, specific verification step is as follows:
The first step:Inputted on the guidance panel of electronic transducer calibration instrument (3) the tested specified sub-value of electronic mutual inductor, The method of synchronization, data channel, current/voltage option;The electronic mutual inductor refers to electronic current mutual inductor or electronic type Voltage transformer;
Second step:When selecting current-mode, the wiring head end L of electronic current mutual inductor (2-1) is tested1It is mutual with normalized current The end L of sensor first winding (1-2)O2Connect, be tested the wiring end L of electronic current mutual inductor (2-1)2And normalized current The head end L of transformer first winding (1-2)o1Connect, the first and last end of standard current transformer secondary winding (1-1) respectively with electronics The first and last end connection of the electric current conversion first winding (3-6) of formula mutual-inductor tester (3);
When selecting voltage mode, the wiring head end Ax and standard potential transformer one of electronic type voltage transformer (7-1) are tested The head end Ao of secondary winding (6-2) is connected, and is tested the wiring end Xx and standard potential transformer of electronic type voltage transformer (7-1) The end Xo of first winding (6-2) is connected, and is grounded simultaneously;The first and last end difference of standard potential transformer secondary winding (6-1) It is connected with the input first and last end of the voltage conversion first winding (3-8) of electronic transducer calibration instrument (3);
3rd step:The converted winding of electronic transducer calibration instrument (3) carries out standard figures message sample, and is transferred to electronic type The data acquisition unit (3-1) of mutual-inductor tester (3), and data acquisition unit (3-1) and labview verification platforms (3-3) Information transfer is carried out by data/address bus (3-2);
4th step:The data of tested electronic mutual inductor system are handled by combining unit packing, and combining unit is verified with electronic type Optical-fibre communications is used between instrument measured data receiving unit, includes the wink of combining unit synchronised clock and electronic mutual inductor system When data;Data acquisition unit (3-1) is transmitted with labview verification platforms (3-3) using Ethernet protocol;The tested electronics Formula transformer system refers to tested electronic current mutual inductor system or tested electronic type voltage transformer system;
5th step:The tested electronic mutual inductor system data and the 3rd that platform (3-3) receives the 4th step is verified by labview The normal data that pacing is obtained is compared analysis, obtains the error information of tested electronic mutual inductor system;
6th step:By adjusting pressure regulator output voltage, while in measuring requirement rated point to tested electronic mutual inductor system System and standard mutual inductor are powered, and measure tested electronic mutual inductor rated point error information.
3. according to the electronic mutual inductor system calibration method described in claim 2, it is characterized in that:The data acquisition unit (3-1) realizes analog-to-digital conversion using 24 collectors.
4. according to the electronic mutual inductor system calibration method described in claim 2, it is characterized in that:Described labview verifications Platform (3-3) is handled using Fourier transformation, analyzes the calibrating for realizing electronic mutual inductor system.
CN201710490089.8A 2017-06-25 2017-06-25 Electronic mutual inductor verification system and calibration method Pending CN107132501A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107505587A (en) * 2017-09-30 2017-12-22 中国南方电网有限责任公司超高压输电公司检修试验中心 A kind of divider check system and method for calibration
CN108254640A (en) * 2017-12-19 2018-07-06 国网江苏省电力有限公司电力科学研究院 A kind of electronic mutual inductor performance test system based on many reference amounts superposed simulation
CN109116288A (en) * 2018-11-06 2019-01-01 云南电网有限责任公司电力科学研究院 A kind of three-phase combination transformer calibrating installation
CN111929526A (en) * 2020-07-29 2020-11-13 国网冀北电力有限公司计量中心 Electronic voltage transformer checking system and method
CN115561695A (en) * 2022-11-18 2023-01-03 山西互感器电测设备有限公司 On-site calibration device and method for three-phase current transformer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107505587A (en) * 2017-09-30 2017-12-22 中国南方电网有限责任公司超高压输电公司检修试验中心 A kind of divider check system and method for calibration
CN108254640A (en) * 2017-12-19 2018-07-06 国网江苏省电力有限公司电力科学研究院 A kind of electronic mutual inductor performance test system based on many reference amounts superposed simulation
CN109116288A (en) * 2018-11-06 2019-01-01 云南电网有限责任公司电力科学研究院 A kind of three-phase combination transformer calibrating installation
CN111929526A (en) * 2020-07-29 2020-11-13 国网冀北电力有限公司计量中心 Electronic voltage transformer checking system and method
CN115561695A (en) * 2022-11-18 2023-01-03 山西互感器电测设备有限公司 On-site calibration device and method for three-phase current transformer

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