CN107132501A - Electronic mutual inductor verification system and calibration method - Google Patents
Electronic mutual inductor verification system and calibration method Download PDFInfo
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- 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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- 238000012795 verification Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004804 winding Methods 0.000 claims abstract description 110
- 238000006243 chemical reaction Methods 0.000 claims abstract description 41
- 239000013307 optical fiber Substances 0.000 claims abstract description 34
- 230000001360 synchronised effect Effects 0.000 claims abstract description 28
- 238000004891 communication Methods 0.000 claims abstract description 17
- 238000005070 sampling Methods 0.000 claims abstract description 8
- 230000009466 transformation Effects 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims abstract description 3
- 230000005540 biological transmission Effects 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 8
- 238000012546 transfer Methods 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
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- 206010068052 Mosaicism Diseases 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing 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
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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
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
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.
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| CN201710490089.8A CN107132501A (en) | 2017-06-25 | 2017-06-25 | Electronic mutual inductor verification system and calibration method |
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| CN201710490089.8A CN107132501A (en) | 2017-06-25 | 2017-06-25 | Electronic mutual inductor verification system and calibration method |
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Cited By (5)
| 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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2017
- 2017-06-25 CN CN201710490089.8A patent/CN107132501A/en active Pending
Cited By (5)
| 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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Application publication date: 20170905 |