CN103472273B - Electronic type voltage transformer standard and electronic type voltage transformer verification structure - Google Patents
Electronic type voltage transformer standard and electronic type voltage transformer verification structure Download PDFInfo
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- CN103472273B CN103472273B CN201310409000.2A CN201310409000A CN103472273B CN 103472273 B CN103472273 B CN 103472273B CN 201310409000 A CN201310409000 A CN 201310409000A CN 103472273 B CN103472273 B CN 103472273B
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- 238000012795 verification Methods 0.000 title claims abstract description 26
- 238000004804 winding Methods 0.000 claims abstract description 43
- 238000012216 screening Methods 0.000 claims description 8
- 230000000644 propagated effect Effects 0.000 abstract description 4
- 238000004088 simulation Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Abstract
The invention discloses a kind of electronic type voltage transformer standard, comprise standard potential transformer, collector and IEC61850 combiner A, double-stage voltage transformer, analog signal output interface and digital signal output interface, standard potential transformer comprises a winding and Secondary Winding, Secondary Winding is connected with the primary side of double-stage voltage transformer, the secondary side of double-stage voltage transformer is connected with analog signal output interface, collector is connected with Secondary Winding, collector is propagated cable by digital signal and is connected with IEC61850 combiner A, IEC61850 combiner A is connected with digital signal output interface.The invention also discloses three kinds of electronic type voltage transformer verification structures.The invention has the advantages that: can simultaneously outputting analog signal and IEC61850 standard signal, can be used in verification simulation and export electronic type voltage transformer and numeral exports electronic type voltage transformer.
Description
Technical field
The present invention relates to field of power detection, be specifically related to a kind of electronic type voltage transformer standard and electronic type voltage transformer verification structure.
Background technology
Along with the construction of intelligent substation, be that the electronic mutual inductor of new generation of representative is just widely applied with photo-electricity mutual-inductor, before putting into operation, complete detection must be done to actual performance, to ensure the reliability service of intelligent substation.The secondary of electronic mutual inductor exports and exports different from the secondary of traditional mutual inductor, can be divided into analog output and digital output two kinds.Tradition mutual-inductor tester for want of corresponding digital interface and can not verifying electronic mutual inductor.The analog output of electronic mutual inductor neither traditional modulating output, and its output capacity exports little many than tradition.Due to the singularity of this structure of electronic mutual inductor, be difficult to application electromagnetic transformer calibration equipment and verify, and most of electronic type voltage transformer standard output data layout is single now, range of application is narrow.
Summary of the invention
Namely object of the present invention is to overcome the deficiencies in the prior art, provides one can realize multiple output mode, is applicable to the electronic type voltage transformer standard of the electronic type voltage transformer of different output mode.
Another object of the present invention there are provided three kinds of electronic type voltage transformer verification structures.
Object of the present invention is achieved through the following technical solutions:
Electronic type voltage transformer standard, comprise standard potential transformer, collector and IEC61850 combiner A, double-stage voltage transformer, analog signal output interface and digital signal output interface, standard potential transformer comprises a winding and Secondary Winding, Secondary Winding is connected with the primary side of double-stage voltage transformer, the secondary side of double-stage voltage transformer is connected with analog signal output interface, collector is connected with Secondary Winding, collector is propagated cable by digital signal and is connected with IEC61850 combiner A, IEC61850 combiner A is connected with digital signal output interface.
Principle of work of the present invention is as follows:
One time winding is connected with power-supply unit, the voltage signal after Secondary Winding output attenuatoin, and voltage signal, after double-stage voltage transformer, is exported by analog signal output interface.Voltage signal also collected device collection convert digital signal to, then export IEC61850 standard signal by IEC61850 combiner A, IEC61850 standard signal is exported by digital signal output interface.
The present invention can simultaneously outputting analog signal and IEC61850 standard signal, can be used in verification simulation and exports electronic type voltage transformer and numeral exports electronic type voltage transformer.
The present invention additionally uses double-stage voltage transformer, can carry out field voltage compensation, improve precision of the present invention.
Further, the voltage changer between the secondary side being arranged at described double-stage voltage transformer and described analog signal output interface is also comprised.Voltage changer is used for voltage signal being converted to the analog output meeting standard GB/T/T20847.7 and specify, magnitude of voltage can be respectively 1.625V, 2V, 3.25V, 4V, 6.5V or 1.625V/
, 2V/
, 3.25V/
, 4V/
, 6.5V/
.
Further, the screening can wrapping up described voltage changer is also comprised.。Screening can shield external signal interference, improves the accuracy of voltage signal conversion, adds the precision of the present invention's verification.
Further, the switch between the primary side being arranged at described Secondary Winding and described double-stage voltage transformer is also comprised.
Another object of the present invention is achieved through the following technical solutions:
Electronic type voltage transformer verification structure, comprise stepup transformer, electronic type voltage transformer standard, modulating output electronic type voltage transformer (VT) and mutual-inductor tester, a winding and the modulating output electronic type voltage transformer (VT) of stepup transformer and electronic type voltage transformer standard form closed-loop path, the analog signal output interface of electronic type voltage transformer standard is connected with the analog input interface of mutual-inductor tester, and the signal output interface of modulating output electronic type voltage transformer (VT) is connected with the analog input interface of mutual-inductor tester.
Electronic type voltage transformer verification structure, comprise stepup transformer, electronic type voltage transformer standard, numeral exports electronic type voltage transformer, mutual-inductor tester and IEC61850 combiner B, a winding of stepup transformer and electronic type voltage transformer standard and numeral export electronic type voltage transformer and form closed-loop path, the digital signal output interface of electronic type voltage transformer standard is connected with mutual-inductor tester, the signal output interface that numeral exports electronic type voltage transformer is connected with IEC61850 combiner B, IEC61850 combiner B is connected with the digital signal input interface of mutual-inductor tester, the synchronization pulse output interface of mutual-inductor tester is connected with IEC61850 combiner A and IEC61850 combiner B simultaneously.
When collector gathers voltage signal, inevitably produce time delay, thus the signal that electronic type voltage transformer standard is exported is with digital to export the signal that electronic type voltage transformer exports asynchronous, has a strong impact on the accuracy of verification.In order to overcome this problem, the synchronization pulse output interface of mutual-inductor tester is connected with IEC61850 combiner A and IEC61850 combiner B simultaneously.Synchronization pulse output interface output sync pulse signal, the signal that IEC61850 combiner A and IEC61850 combiner B is exported is synchronous, thus the signal avoiding electronic type voltage transformer standard to export and numeral export the nonsynchronous problem of signal that electronic type voltage transformer exports, and can greatly improve checking precision.
Electronic type voltage transformer verification structure, comprise stepup transformer, electronic type voltage transformer standard, numeral exports electronic type voltage transformer and mutual-inductor tester, a winding of stepup transformer and electronic type voltage transformer standard and numeral export electronic type voltage transformer and form closed-loop path, the signal output interface that numeral exports electronic type voltage transformer is connected with IEC61850 combiner B, IEC61850 combiner B is connected with the digital signal input interface of mutual-inductor tester, the analog signal output interface of electronic type voltage transformer standard is connected with the analog input interface of mutual-inductor tester.
In sum, advantage of the present invention and beneficial effect are:
1. the present invention can simultaneously outputting analog signal and IEC61850 standard signal, can be used in verification simulation and exports electronic type voltage transformer and numeral exports electronic type voltage transformer;
2. voltage changer is set.Voltage changer is used for voltage signal being converted to the analog output meeting standard GB/T/T20847.8 and specify;
3. screening can is set, adds the precision of the present invention's verification;
4. three kinds of electronic type voltage transformer verification structures are provided, electronic type voltage transformer can be exported to modulating output electronic type voltage transformer (VT) and numeral respectively and verify;
5. the synchronization pulse output interface of mutual-inductor tester is connected with IEC61850 combiner A and IEC61850 combiner B simultaneously, the signal avoiding electronic type voltage transformer standard to export and numeral export the nonsynchronous problem of signal that electronic type voltage transformer exports, and can greatly improve checking precision.
Accompanying drawing explanation
In order to be illustrated more clearly in embodiments of the invention, be briefly described to the accompanying drawing used required for describing in the embodiment of the present invention below.Apparent, the accompanying drawing in the following describes is only some embodiments recorded in the present invention, for a person skilled in the art, when not paying creative work, according to accompanying drawing below, can also obtain other accompanying drawing.
Fig. 1 is the structural representation of electronic type voltage transformer standard;
Fig. 2 is the first electronic type voltage transformer verification structure;
Fig. 3 is the second electronic type voltage transformer verification structure;
Fig. 4 is the third electronic type voltage transformer verification structure;
Wherein, the parts title that Reference numeral is corresponding is as follows:
1-standard potential transformer, 2-collector, 3-IEC61850 combiner A, 4-double-stage voltage transformer, 5-analog signal output interface, 6-digital signal output interface, 7-voltage changer, 8-screening can, 9-switch, 10-stepup transformer, 11-electronic type voltage transformer standard, 12-modulating output electronic type voltage transformer (VT), 13-mutual-inductor tester, 14-numeral exports electronic type voltage transformer, 15-IEC61850 combiner B, 101-winding, 102-Secondary Winding.
Embodiment
In order to make those skilled in the art understand the present invention better, below in conjunction with the accompanying drawing in the embodiment of the present invention, clear, complete description is carried out to the technical scheme in the embodiment of the present invention.Apparent, embodiment described below is only the part in the embodiment of the present invention, instead of all.Based on the embodiment that the present invention records, other all embodiment that those skilled in the art obtain when not paying creative work, all in the scope of protection of the invention.
Embodiment 1:
As shown in Figure 1, electronic type voltage transformer standard, comprise standard potential transformer 1, collector 2 and IEC61850 combiner A3, double-stage voltage transformer 4, analog signal output interface 5 and digital signal output interface 6, standard potential transformer 1 comprises a winding 101 and Secondary Winding 102, Secondary Winding 102 is connected with the primary side of double-stage voltage transformer 4, the secondary side of the second level of double-stage voltage transformer 4 is connected with analog signal output interface 5, collector 2 is connected with Secondary Winding 102, collector 2 is propagated cable by digital signal and is connected with IEC61850 combiner A3, IEC61850 combiner A3 is connected with digital signal output interface 6.
One time winding 101 is connected with power-supply unit, the voltage signal after Secondary Winding 102 output attenuatoin, and voltage signal, after double-stage voltage transformer 4, is exported by analog signal output interface 5.Voltage signal also collected device 2 gathers and converts digital signal to, and then export IEC61850 standard signal by IEC61850 combiner A3, IEC61850 standard signal is exported by digital signal output interface 6.
The present invention can simultaneously outputting analog signal and IEC61850 standard signal, can be used in verification simulation and exports electronic type voltage transformer and numeral exports electronic type voltage transformer.
The present invention additionally uses double-stage voltage transformer 4, can carry out field voltage compensation, improve precision of the present invention.
Embodiment 2:
As shown in Figure 1, the present embodiment, on the basis of embodiment 1, also comprises the voltage changer 7 between secondary side and described analog signal output interface 5 being arranged at described double-stage voltage transformer 4.
Voltage changer 7 is for converting the analog output meeting standard GB/T/T20847.7 and specify to by voltage signal, magnitude of voltage can be respectively 1.625V, 2V, 3.25V, 4V, 6.5V or 1.625V/
, 2V/
, 3.25V/
, 4V/
, 6.5V/
.
Embodiment 3:
As shown in Figure 1, the present embodiment, on the basis of embodiment 2, also comprises the screening can 8 wrapping up described voltage changer 7.Screening can 8 can shield external signal interference, improves the accuracy of voltage signal conversion, adds the precision of the present invention's verification.
Embodiment 4:
As shown in Figure 1, the present embodiment, on the basis of any one embodiment above-mentioned, also comprises the switch 9 be arranged between described Secondary Winding 102 and the primary side of described double-stage voltage transformer 4.
Embodiment 5:
As shown in Figure 1, electronic type voltage transformer standard, comprise standard potential transformer 1, collector 2 and IEC61850 combiner A3, double-stage voltage transformer 4, analog signal output interface 5 and digital signal output interface 6, standard potential transformer 1 comprises a winding 101 and Secondary Winding 102, Secondary Winding 102 is connected with the primary side of double-stage voltage transformer 4, the secondary side of double-stage voltage transformer 4 is connected with analog signal output interface 5, collector 2 is connected with Secondary Winding 102, collector 2 is propagated cable by digital signal and is connected with IEC61850 combiner A3, IEC61850 combiner A3 is connected with digital signal output interface 6.Also comprise the voltage changer 7 between secondary side and described analog signal output interface 5 being arranged at described double-stage voltage transformer 4.Also comprise the screening can 8 wrapping up described voltage changer 7.Also comprise the switch 9 be arranged between described Secondary Winding 102 and the primary side of described double-stage voltage transformer 4.
The accuracy rating of a winding 101 and Secondary Winding 102 is 0.01 grade, and the voltage that winding 101 relates to is 10kV, 35kV, 110kV or 220kV, the output voltage of Secondary Winding 102 is 100V, 100/
v, can meet the verifying work requirement of traditional mutual inductance.
Voltage changer 7 is for converting the analog output meeting standard GB/T/T20847.7 and specify to by voltage signal, magnitude of voltage can be respectively 1.625V, 2V, 3.25V, 4V, 6.5V or 1.625V/
, 2V/
, 3.25V/
, 4V/
, 6.5V/
.
Embodiment 6:
As shown in Figure 2, electronic type voltage transformer verification structure, comprise stepup transformer 10, electronic type voltage transformer standard 11, modulating output electronic type voltage transformer (VT) 12 and mutual-inductor tester 13, a winding 101 and the modulating output electronic type voltage transformer (VT) 12 of stepup transformer 10 and electronic type voltage transformer standard 11 form closed-loop path, the analog signal output interface 5 of electronic type voltage transformer standard 11 is connected with the analog input interface of mutual-inductor tester 13, the signal output interface of modulating output electronic type voltage transformer (VT) 12 is connected with the analog input interface of mutual-inductor tester 13.
Electronic type voltage transformer standard 11 can adopt any one electronic type voltage transformer standard in embodiment 1 ~ 5.
Embodiment 7:
As shown in Figure 3, electronic type voltage transformer verification structure, comprise stepup transformer 10, electronic type voltage transformer standard 11, numeral exports electronic type voltage transformer 14, mutual-inductor tester 13 and IEC61850 combiner B15, a winding 101 of stepup transformer 10 and electronic type voltage transformer standard 11 and numeral export electronic type voltage transformer 14 and form closed-loop path, the digital signal output interface 6 of electronic type voltage transformer standard 11 is connected with mutual-inductor tester 13, the signal output interface that numeral exports electronic type voltage transformer 14 is connected with IEC61850 combiner B15, IEC61850 combiner B15 is connected with the digital signal input interface of mutual-inductor tester 13, the synchronization pulse output interface of mutual-inductor tester 13 is connected with IEC61850 combiner A3 and IEC61850 combiner B15 simultaneously.
Electronic type voltage transformer standard 11 can adopt any one electronic type voltage transformer standard in embodiment 1 ~ 5.
Embodiment 8:
The present embodiment is on the basis of embodiment 7, and digital signal input interface is Ethernet interface.
Embodiment 9:
As shown in Figure 4, electronic type voltage transformer verification structure, comprise stepup transformer 10, electronic type voltage transformer standard 11, numeral exports electronic type voltage transformer 14 and mutual-inductor tester 13, a winding 101 of stepup transformer 10 and electronic type voltage transformer standard 11 and numeral export electronic type voltage transformer 14 and form closed-loop path, the signal output interface that numeral exports electronic type voltage transformer 14 is connected with IEC61850 combiner B15, IEC61850 combiner B15 is connected with the digital signal input interface of mutual-inductor tester 13, the analog signal output interface 5 of electronic type voltage transformer standard 11 is connected with the analog input interface of mutual-inductor tester 13.
Electronic type voltage transformer standard 11 can adopt any one electronic type voltage transformer standard in embodiment 1 ~ 5.
Embodiment 10:
The present embodiment is on the basis of embodiment 9, and digital signal input interface is Ethernet interface.
In the above-described embodiments, the model of collector is NI9222, and the model of combiner is DMU.
As mentioned above, just the present invention can be realized preferably.
Claims (7)
1. electronic type voltage transformer standard, it is characterized in that: comprise standard potential transformer (1), collector (2) and IEC61850 combiner A(3), double-stage voltage transformer (4), analog signal output interface (5) and digital signal output interface (6), standard potential transformer (1) comprises a winding (101) and Secondary Winding (102), Secondary Winding (102) is connected with the primary side of double-stage voltage transformer (4), the secondary side of double-stage voltage transformer (4) is connected with analog signal output interface (5), collector (2) is connected with Secondary Winding (102), collector (2) propagates cable and IEC61850 combiner A(3 by digital signal) be connected, IEC61850 combiner A(3) be connected with digital signal output interface (6).
2. electronic type voltage transformer standard according to claim 1, is characterized in that: also comprise the voltage changer (7) between secondary side and described analog signal output interface (5) being arranged at described double-stage voltage transformer (4).
3. electronic type voltage transformer standard according to claim 2, is characterized in that: the screening can (8) also comprising the described voltage changer of parcel (7).
4. electronic type voltage transformer standard according to claim 1, is characterized in that: also comprise the switch (9) between the primary side being arranged at described Secondary Winding (102) and described double-stage voltage transformer (4).
5. electronic type voltage transformer verification structure, it is characterized in that: comprise stepup transformer (10), as the electronic type voltage transformer standard (11) in Claims 1-4 as described in any one, modulating output electronic type voltage transformer (VT) (12) and mutual-inductor tester (13), a winding (101) and the modulating output electronic type voltage transformer (VT) (12) of stepup transformer (10) and electronic type voltage transformer standard (11) form closed-loop path, the analog signal output interface (5) of electronic type voltage transformer standard (11) is connected with the analog input interface of mutual-inductor tester (13), the signal output interface of modulating output electronic type voltage transformer (VT) (12) is connected with the analog input interface of mutual-inductor tester (13).
6. electronic type voltage transformer verification structure, it is characterized in that: comprise stepup transformer (10), as the electronic type voltage transformer standard (11) in Claims 1-4 as described in any one, numeral exports electronic type voltage transformer (14), mutual-inductor tester (13) and IEC61850 combiner B(15), a winding (101) of stepup transformer (10) and electronic type voltage transformer standard (11) and numeral export electronic type voltage transformer (14) and form closed-loop path, the digital signal output interface (6) of electronic type voltage transformer standard (11) is connected with mutual-inductor tester (13), numeral exports signal output interface and the IEC61850 combiner B(15 of electronic type voltage transformer (14)) be connected, IEC61850 combiner B(15) be connected with the digital signal input interface of mutual-inductor tester (13), the synchronization pulse output interface of mutual-inductor tester (13) simultaneously with IEC61850 combiner A(3) and IEC61850 combiner B(15) be connected.
7. electronic type voltage transformer verification structure, it is characterized in that: comprise stepup transformer (10), as the electronic type voltage transformer standard (11) in Claims 1-4 as described in any one, numeral exports electronic type voltage transformer (14) and mutual-inductor tester (13), a winding (101) of stepup transformer (10) and electronic type voltage transformer standard (11) and numeral export electronic type voltage transformer (14) and form closed-loop path, numeral exports signal output interface and the IEC61850 combiner B(15 of electronic type voltage transformer (14)) be connected, IEC61850 combiner B(15) be connected with the digital signal input interface of mutual-inductor tester (13), the analog signal output interface (5) of electronic type voltage transformer standard (11) is connected with the analog input interface of mutual-inductor tester (13).
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| CN201310409000.2A CN103472273B (en) | 2013-09-11 | 2013-09-11 | Electronic type voltage transformer standard and electronic type voltage transformer verification structure |
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| CN103472273B true CN103472273B (en) | 2016-02-03 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104090257A (en) * | 2014-07-15 | 2014-10-08 | 国家电网公司 | Electronic instrument transformer wireless checking system |
| CN115877310B (en) * | 2023-02-14 | 2023-05-23 | 国网江苏省电力有限公司营销服务中心 | Voltage transformer on-site verification system and state diagnosis method |
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