CN206223960U - A kind of extra-high voltage transformer verification switching device - Google Patents
A kind of extra-high voltage transformer verification switching device Download PDFInfo
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- CN206223960U CN206223960U CN201621036429.7U CN201621036429U CN206223960U CN 206223960 U CN206223960 U CN 206223960U CN 201621036429 U CN201621036429 U CN 201621036429U CN 206223960 U CN206223960 U CN 206223960U
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- binding post
- voltage transformer
- extra
- switching device
- high voltage
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- 238000012795 verification Methods 0.000 title claims abstract description 17
- 238000004804 winding Methods 0.000 claims abstract description 51
- 239000004593 Epoxy Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 235000018290 Musa x paradisiaca Nutrition 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000005340 laminated glass Substances 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 240000005561 Musa balbisiana Species 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract 1
- 238000000691 measurement method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 241000234295 Musa Species 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Transformers For Measuring Instruments (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a kind of extra-high voltage transformer verification switching device, including binding post, panel, box body, it is characterized in that, the binding post has 6, wherein 1a, the 1n of binding post 1a ', binding post 1n ' respectively with tested secondary windings of PT is connected, 2a, the 2n of binding post 2a ', binding post 2n ' respectively with tested secondary windings of PT are connected, and 3a, the 3n of binding post 3a ', binding post 3n ' respectively with tested secondary windings of PT are connected.The extra-high voltage transformer method of calibration of this switching device is connected by secondary line with the Secondary Winding of tested extra-high voltage transformer, the binding post of the device is connected by secondary line with mutual-inductor tester, voltage transformer Burden box again, only need to ground just can complete extra-high voltage transformer whole windings error test wiring work, substantially increase the security of operating efficiency and field test.
Description
Technical field
The utility model belongs to extra-high voltage transformer technical field of measurement and test, is related to a kind of extra-high voltage transformer school
Test and use switching device.
Background technology
As the fast development of extra-high voltage, the quantity at extra-high voltage station are also more and more, wherein extra-high voltage transformer is
The important component of electric power meter, its accuracy is directly connected to the fair, just of trade settlement, it is therefore desirable to it
Carry out field-checking.Extra-high voltage transformer secondary side have 3 measure windings 1a-1n, 2a-2n, 3a-3n and 1 protection around
Group da-dn, national metrological regulations regulation 1a-1n, 2a-2n, 3a-3n this 3 measure windings will carry out error checking.Extra-high voltage
Voltage transformer is high because of its voltage class, is often placed on 6~7 meters of platforms high (as shown in Fig. 2 high voltage potential transformer
Secondary Winding terminal box 9 is installed on overhead 10), Secondary Winding binding post is liftoff height, generally greater than more than 7 meters of ground, to 3
Individual measure winding carries out error checking, at least needs to climb 3 overhead replacings for carrying out secondary line up and down, and inefficiency is deposited
In certain potential safety hazard.Extra-high voltage transformer is not only, 750kV and following capacitance type potential transformer are also mounted at branch
On support, it is remote that Secondary Winding is liftoff, also all there is a problem of same.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art part, there is provided a kind of extra-high voltage transformer school
Test and use switching device, it is only necessary to climb once the overhead Secondary Winding by tested voltage transformer and the switching device is connected to by secondary line
On, just can be done directly more changing jobs for Secondary Winding wiring on ground.
The utility model solves its technical problem and takes following technical scheme to realize：
A kind of extra-high voltage transformer verification switching device, it is characterised in that：Switching device includes binding post, panel
And box body, one-to-one three rows binding post is provided with panel uniformly at intervals, six binding posts are respectively used to connection examination
The corresponding terminal of secondary windings of PT, and switching device connects corresponding voltage transformer Burden box.
And, the panel is made up of epoxy phenolic laminated glass fabric plate epoxy plate.
And, the binding post is high current fine copper banana binding post.
And, wiring construction when this switching device is verified：6 binding posts of switching device are respectively：Binding post 1a ',
Binding post 1n ', binding post 2a ', binding post 2n ', binding post 3a ', binding post 3n '；
Tested extra-high voltage transformer secondary side has 4 windings, and 1a-1n, 2a-2n, 3a-3n are the wiring of measure winding
Terminal, need to carry out error checking, and da-dn is non-metering winding；
Binding post 1a ', binding post 1n ' are corresponding with 1a, 1n of tested secondary windings of PT respectively to be connected, binding post
2a ', binding post 2n ' are corresponding with 2a, 2n of tested secondary windings of PT respectively to be connected, binding post 3a ', binding post 3n '
It is corresponding with 3a, 3n of tested secondary windings of PT respectively to be connected；Dn terminal grounds.
Advantage of the present utility model and good effect are：
The verification of the utility model extra-high voltage transformer is mutual with tested extra-high voltage by secondary line with switching device
The Secondary Winding of sensor is connected, and the binding post of the device is again by secondary line and mutual-inductor tester, voltage transformer Burden box
It is connected, it is only necessary to the wiring work of the error test of whole windings of extra-high voltage transformer just can be completed on ground, is carried significantly
The security of operating efficiency and field test high.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is that schematic diagram is put at extra-high voltage transformer scene；
Fig. 3 is the high-end error of measurement method circuit theory diagrams of voltage transformer；
Fig. 4 is to be tested voltage transformer, extra-high piezoelectricity according to when carrying out voltage transformer error verification in high-end error of measurement method
The wiring diagram of pressure transducer check switching device and voltage transformer Burden box.
The mark implication of accompanying drawing is as follows：
1：Binding post 1a '；2：Binding post 1n '；3：Binding post 2a '；4：Binding post 2n '；5：Binding post 3a '；6：Binding post
3n′；7：Panel；8：Box body；9：High voltage potential transformer Secondary Winding terminal box；10：It is overhead.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings and by specific embodiment, and following examples are to retouch
The property stated, be not limited, it is impossible to limit protection domain of the present utility model with this.
A kind of extra-high voltage transformer verification switching device, as shown in figure 1, including binding post, panel 7 and box body
8, one-to-one three rows binding post is provided with panel uniformly at intervals；
Panel is made up of epoxy phenolic laminated glass fabric plate epoxy plate, and binding post is high current fine copper banana binding post；
The corresponding label of 6 binding posts is as follows：1：Binding post 1a '；2：Binding post 1n '；3：Binding post 2a '；4：Wiring
Post 2n '；5：Binding post 3a '；6：Binding post 3n '；
High voltage potential transformer Secondary Winding terminal box 9 is installed on overhead 10, it is only necessary on it is next time overhead by extra-high piezoelectricity
The Secondary Winding of transformer is pressed to be connected with the switching device, just can be in whole windings of ground completion extra-high voltage transformer
The wiring work of error test.
Referring to shown in Fig. 3, Fig. 4, tested extra-high voltage transformer secondary side has 4 windings, wherein 1a-1n, 2a-2n,
3a-3n is measure winding, need to carry out error checking；Wherein, binding post 1a ', binding post 1n ' respectively with tested voltage transformer two
1a, 1n of secondary winding are connected, and 2a, the 2n of binding post 2a ', binding post 2n ' respectively with tested secondary windings of PT are connected,
3a, the 3n of binding post 3a ', binding post 3n ' respectively with tested secondary windings of PT are connected.
Only need next time overhead, the Secondary Winding of extra-high voltage transformer is connected with the switching device, on ground
The wiring work of the error test of whole windings of extra-high voltage transformer is completed, specific implementation includes following step
Suddenly：
(1) according to transducer check principle (error of measurement method), by Regulation Control case, exciting transformer, reactor, normal voltage
Transformer, tested voltage transformer and mutual-inductor tester are sequentially connected；
(2) 1a, 2a, 3a tap of tested secondary windings of PT is connect with switching device respectively by secondary line
Terminal 1a ', binding post 2a ', binding post 3a ' connections, are tested 1n, 2n, 3n tap of secondary windings of PT by secondary
Line binding post 1n ' respectively with switching device, binding post 2n ', binding post 3n ' are connected,
Binding post 1a ', 1n ' are connected with voltage transformer Burden box a, binding post 2a ', 2n ' and voltage transformer Burden box b
It is connected, binding post 3a ', 3n ' are connected with voltage transformer Burden box c,
And 3 Burden box and dn terminals will distinguish reliable ground above；
(3) high-end error of measurement method surveys the error of tested voltage transformer：
After by (1), (2) step, equipment is connected, by binding post 1n ', binding post 2n ', binding post 3n ' secondary lines
Short circuit is simultaneously grounded, and when being verified to tested voltage transformer secondary side 1a-1n windings, extra-high voltage transformer verification is used
The binding post 1a ' of switching device is connected with mutual-inductor tester；When carrying out school to tested voltage transformer secondary side 2a-2n windings
When testing, the binding post 2a ' of extra-high voltage transformer verification switching device is connected with mutual-inductor tester；When to being tested voltage
When transformer secondary side 3a-3n windings are verified, the binding post 3a ' of extra-high voltage transformer verification switching device with it is mutual
Sensor tester is connected.
(4) low side error of measurement method surveys the error of extra-high voltage transformer：
Equipment is connected by (1), (2) step, is verified when to tested voltage transformer secondary side 1a-1n windings
When, the binding post 1a ' of extra-high voltage transformer verification switching device is short with standard potential transformer Secondary Winding high-pressure side
Connect and 1n ' is connected with mutual-inductor tester；It is extra-high when being verified to tested voltage transformer secondary side 2a-2n windings
The binding post 2a ' and standard potential transformer Secondary Winding high-pressure side short circuit of medium-voltage potential transformers verification switching device simultaneously will
2n ' is connected with mutual-inductor tester；When being verified to tested voltage transformer secondary side 3a-3n windings, extra-high voltage
The binding post 3a ' of transducer check switching device and standard potential transformer Secondary Winding high-pressure side short circuit and by 3n ' with it is mutual
Sensor tester is connected.
Although disclosing embodiment of the present utility model and accompanying drawing for the purpose of illustration, those skilled in the art can be with
Understand：Not departing from the utility model and spirit and scope of the appended claims, various replacements, change and modifications all be can
Can, therefore, scope of the present utility model is not limited to embodiment and accompanying drawing disclosure of that.
Claims (4)
1. a kind of extra-high voltage transformer verification switching device, it is characterised in that：Switching device include binding post, panel with
And box body, one-to-one three rows binding post is provided with panel uniformly at intervals, six binding posts are respectively used to connection examination electricity
The corresponding terminal of pressure transformer Secondary Winding, and switching device connects corresponding voltage transformer Burden box.
2. extra-high voltage transformer verification switching device according to claim 1, it is characterised in that：The panel by
Epoxy phenolic laminated glass fabric plate epoxy plate is made.
3. extra-high voltage transformer verification switching device according to claim 1, it is characterised in that：The binding post
It is high current fine copper banana binding post.
4. extra-high voltage transformer verification switching device according to claim 1, it is characterised in that：This switching device
Wiring construction during verification：6 binding posts of switching device are respectively：Binding post 1a ', binding post 1n ', binding post 2a ', wiring
Post 2n ', binding post 3a ', binding post 3n '；
Tested extra-high voltage transformer secondary side has 4 windings, and 1a-1n, 2a-2n, 3a-3n are the terminals of measure winding
Son, need to carry out error checking, and da-dn is non-metering winding；
Binding post 1a ', binding post 1n ' are corresponding with 1a, 1n of tested secondary windings of PT respectively to be connected, binding post 2a ',
Binding post 2n ' is corresponding with 2a, 2n of tested secondary windings of PT respectively to be connected, and binding post 3a ', binding post 3n ' are respectively
It is corresponding with 3a, 3n of tested secondary windings of PT to be connected；Dn terminal grounds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621036429.7U CN206223960U (en) | 2016-09-05 | 2016-09-05 | A kind of extra-high voltage transformer verification switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621036429.7U CN206223960U (en) | 2016-09-05 | 2016-09-05 | A kind of extra-high voltage transformer verification switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206223960U true CN206223960U (en) | 2017-06-06 |
Family
ID=58782118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621036429.7U Active CN206223960U (en) | 2016-09-05 | 2016-09-05 | A kind of extra-high voltage transformer verification switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206223960U (en) |
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2016
- 2016-09-05 CN CN201621036429.7U patent/CN206223960U/en active Active
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