CN106324398A - Transformer short-circuit grounding testing device - Google Patents

Transformer short-circuit grounding testing device Download PDF

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Publication number
CN106324398A
CN106324398A CN201610707017.XA CN201610707017A CN106324398A CN 106324398 A CN106324398 A CN 106324398A CN 201610707017 A CN201610707017 A CN 201610707017A CN 106324398 A CN106324398 A CN 106324398A
Authority
CN
China
Prior art keywords
clamp body
stigma
short
transformer
insulating clamp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610707017.XA
Other languages
Chinese (zh)
Inventor
高振府
高起山
柴天龙
周晓辰
王海滨
周明
谷雨
宋慧敏
马静
金峰
王倩
徐春堂
代辉
郭广森
艾胜涛
朱桂东
宋文乐
王朝阳
王宁
翟云飞
郝翔宇
王曼曼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Hebei Electric Power Co Ltd
Cangzhou Power Supply Co of State Grid Hebei Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Hebei Electric Power Co Ltd
Cangzhou Power Supply Co of State Grid Hebei Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Hebei Electric Power Co Ltd, Cangzhou Power Supply Co of State Grid Hebei Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201610707017.XA priority Critical patent/CN106324398A/en
Publication of CN106324398A publication Critical patent/CN106324398A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • G01R1/0408Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • G01R1/0425Test clips, e.g. for IC's

Abstract

The invention discloses a transformer short-circuit grounding testing device which relates to the technical field of transformer testing devices. The transformer short-circuit grounding testing device comprises five wire clamps. Each wire clamp comprises an insulated wire clamp body. The jaw of the insulated wire clamp body is internally provided with a conductive metal sheet which is electrically connected with a lead. An insulating sheath packages the lead. The free ends of the five leads are fixedly connected for forming a common end. When a short-circuit grounding testing on a corresponding winding of the transformer is required, one random insulated wire clamp body clamps a corresponding phase terminal of the transformer, and the other insulated wire clamp body clamps the grounding end of the transformer, thereby realizing short-circuit and grounding of the corresponding winding. The transformer short-circuit grounding testing device has advantages of small size, small weight, high convenience in carrying and use, and high speed in realizing reliable short-circuit grounding of the transformer winding.

Description

The short seal apparatus of transformer test
Technical field
The present invention relates to transformer testing device technique field, particularly relate to one and can carry out the examination of transformator short envelope easily The device tested.
Background technology
Transformator is the nucleus equipment of transformer station.In electrical test of transformer, a lot of projects need corresponding windings short circuit Or short circuit ground connection.In the most complete transformator routine test, short-circuit grounding wire to be disassembled more than 10 times, and short circuit or The effect of ground connection will directly affect result of the test.
Traditional test short-circuit grounding wire uses bare copper wire to make, and uses the method for winding to carry out short circuit and connect in test Ground.Owing to the volume of transformer of 110kV and above is big, sleeve pipe is high, and demolition, installation short-circuit grounding wire can take substantial amounts of work Make the time, and short circuit grounding effect is difficult to ensure that.
Summary of the invention
The technical problem to be solved is to provide a kind of short seal apparatus of transformer test, and described device volume is little, Lightweight, carry easy to use, can quickly realize the reliable short circuit grounding of Transformer Winding.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of short seal apparatus of transformer test, its Being characterised by: include five wire clamps, described wire clamp includes insulating clamp body, sets in the jaw of each described insulating clamp body Having conductive metal sheet, conductive metal sheet is electrically connected with a wire, the outside of described wire is enclosed with insulated hull, five wires Free end be fixed together composition common port, when needing the short testing sealing carrying out transformator corresponding windings, will wherein Any one insulating clamp body clip on transformator corresponding phase stigma, another insulating clamp body clips to transformator On earth terminal, by corresponding windings short circuit ground connection.
Further technical scheme is: 4 insulating clamp bodies therein clip to the A phase post of Transformer Winding respectively Head, B phase stigma, C phase stigma and neutral point stigma, the 5th insulating clamp body clips on the earth terminal of transformator, it is achieved By A phase stigma, B phase stigma, C phase stigma and the short circuit of neutral point stigma ground connection.
Further technical scheme is: described conductive metal sheet is respectively arranged at the upper side and lower side of described jaw, its In, the front end of conductive metal sheet is provided with a fixing axle, and described fixing axle is fixed in described jaw, and conductive metal sheet is absolutely Can turn an angle around described fixing axle under the drive of edge wire clip body, wherein front end be positioned at upside conductive metal sheet to Under extend across described insulating clamp body extend to insulating clamp body outside constitute free end, one end of described wire Being fixed on this free end, front end is positioned at the conductive metal sheet of downside and upwardly extends and pass described insulating clamp body and extend to The outside of insulating clamp body, and by the first connection sheet metal and the rotating company of wire clamp axle on described insulating clamp body Connect.
Further technical scheme is: one end of described wire is provided with the second connection sheet metal, and second connects sheet metal Being provided with via, described front end is positioned at the free end of the conductive metal sheet of upside and is connected sheet metal with described second admittedly by bolt Fixed connection.
Further technical scheme is: described wire is flexible wire.
Use and have the beneficial effects that produced by technique scheme: described device volume is little, lightweight, carries user Just, can quickly realize the reliable short circuit grounding of Transformer Winding, use described device, complete same short envelope test and have only to 2- 3 minutes, and short circuit grounding is respond well, safe and reliable.Additionally, the insulating clamp body in described device, easy to use, clamping Effective, good contacting can be realized with wire so that the stability of test is higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of device described in the embodiment of the present invention;
Fig. 2 is the test structural representation of device described in the embodiment of the present invention;
Fig. 3 is the structural representation of wire clamp described in the embodiment of the present invention;
Wherein: 1, insulating clamp body 2, conductive metal sheet 3, wire 4, phase stigma 5, earth terminal 6, fixing axle 7, first connect gold Belong to sheet 8, wire clamp axle 9, second connects sheet metal 10, bolt.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Ground describes, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise Embodiment, broadly falls into the scope of protection of the invention.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but the present invention is all right Using other to be different from alternate manner described here to implement, those skilled in the art can be without prejudice to intension of the present invention In the case of do similar popularization, therefore the present invention is not limited by following public specific embodiment.
As it is shown in figure 1, disclose a kind of short seal apparatus of transformer test in one embodiment of the invention, including five Wire clamp, described wire clamp includes insulating clamp body 1, is provided with conductive metal sheet 2 in the jaw of each described insulating clamp body 1, Being electrically connected with a wire 3 on conductive metal sheet 2, described wire 3 is flexible wire, and the outside of described wire 3 is enclosed with insulation Skin, the free end of five wires 3 is fixed together composition common port.When needing to carry out the short envelope examination of transformator corresponding windings When testing, as in figure 2 it is shown, any one insulating clamp body 1 therein is clipped on transformator corresponding phase stigma 4, another Insulating clamp body 1 clips on the earth terminal 5 of transformator, by corresponding windings short circuit ground connection.
Further, 4 insulating clamp bodies 1 therein can be clipped to the A phase stigma of Transformer Winding, B phase post respectively Head, C phase stigma and neutral point stigma, the 5th insulating clamp body 1 clips on the earth terminal 5 of transformator, it is achieved by A phase post Head, B phase stigma, C phase stigma and the short circuit of neutral point stigma ground connection.
Described device volume is little, lightweight, carries easy to use, and the reliable short circuit that can quickly realize Transformer Winding connects Ground, uses described device, completes same short envelope test and has only to 2-3 minute, and short circuit grounding is respond well, safe and reliable.
As it is shown on figure 3, in one embodiment of the invention, described conductive metal sheet 2 is respectively arranged at described jaw The upper side and lower side, wherein, the front end of conductive metal sheet 2 is provided with a fixing axle 6, and described fixing axle 6 is fixed on described jaw In, conductive metal sheet 2 can turn an angle around described fixing axle under the drive of insulating clamp body 1.Wherein position, front end Conductive metal sheet 2 in upside extends downward and through described insulating clamp body 1 and extends to the outside structure of insulating clamp body 1 Becoming free end, one end of described wire 3 is fixed on this free end, and front end is positioned at the conductive metal sheet 2 of downside and upwardly extends also Extend to the outside of insulating clamp body 1 through described insulating clamp body 1, and by the first connection sheet metal 7 with described absolutely The rotating connection of wire clamp axle 8 on edge wire clip body 1.
Further, in order to mount and dismount conveniently, one end of described wire 3 is provided with the second connection sheet metal 9, and second even Connecing sheet metal 9 and be provided with via, described front end is positioned at the free end of the conductive metal sheet 2 of upside by bolt 10 and described second Connect the fixing connection of sheet metal 9.

Claims (5)

1. the short seal apparatus of transformer test, it is characterised in that: including five wire clamps, described wire clamp includes insulating clamp body (1), being provided with conductive metal sheet (2) in the jaw of each described insulating clamp body (1), conductive metal sheet is electrically connected with on (2) Article one, wire (3), the outside of described wire (3) is enclosed with insulated hull, and the free end of five wires (3) is fixed together structure Become common port, when needing the short testing sealing carrying out transformator corresponding windings, by any one insulating clamp body (1) therein Clipping on transformator corresponding phase stigma (4), another insulating clamp body (1) clips on the earth terminal (5) of transformator, by phase Answer short circuit in winding ground connection.
2. the short seal apparatus of transformer test as claimed in claim 1, it is characterised in that: by 4 insulating clamp bodies therein (1) clipping to the A phase stigma of Transformer Winding, B phase stigma, C phase stigma and neutral point stigma respectively, the 5th insulating clamp is originally Body (1) clips on the earth terminal (5) of transformator, it is achieved by A phase stigma, B phase stigma, C phase stigma and the short circuit of neutral point stigma And ground connection.
3. the short seal apparatus of transformer test as claimed in claim 1, it is characterised in that: described conductive metal sheet (2) sets respectively Being placed in the upper side and lower side of described jaw, wherein, the front end of conductive metal sheet (2) is provided with a fixing axle (6), described fixing Axle (6) is fixed in described jaw, and conductive metal sheet (2) can be around described fixing axle under the drive of insulating clamp body (1) Turn an angle, wherein front end be positioned at upside conductive metal sheet (2) extend downward and through described insulating clamp body (1) The outside extending to insulating clamp body (1) constitutes free end, and one end of described wire (3) is fixed on this free end, front end Conductive metal sheet (2) on the downside of being positioned at upwardly extends and passes described insulating clamp body (1) and extends to insulating clamp body (1) Outside, and rotating with the wire clamp axle (8) on described insulating clamp body (1) be connected by the first connection sheet metal (7).
4. the short seal apparatus of transformer test as claimed in claim 3, it is characterised in that: one end of described wire (3) is provided with the Two connect sheet metal (9), and second connects sheet metal (9) is provided with via, and described front end is positioned at the conductive metal sheet (2) of upside Free end is connected the fixing connection of sheet metal (9) by bolt (10) with described second.
5. the short seal apparatus of transformer test as claimed in claim 1, it is characterised in that: described wire (3) is flexible wire.
CN201610707017.XA 2016-08-23 2016-08-23 Transformer short-circuit grounding testing device Pending CN106324398A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610707017.XA CN106324398A (en) 2016-08-23 2016-08-23 Transformer short-circuit grounding testing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610707017.XA CN106324398A (en) 2016-08-23 2016-08-23 Transformer short-circuit grounding testing device

Publications (1)

Publication Number Publication Date
CN106324398A true CN106324398A (en) 2017-01-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610707017.XA Pending CN106324398A (en) 2016-08-23 2016-08-23 Transformer short-circuit grounding testing device

Country Status (1)

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CN (1) CN106324398A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106841698A (en) * 2017-01-12 2017-06-13 国家电网公司 Short circuit fixture is used in a kind of transformer loss experiment
CN109406837A (en) * 2018-11-01 2019-03-01 国家电网有限公司 Power transformer high-potting multifunctional access wire clamp

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202421237U (en) * 2011-12-12 2012-09-05 偃师市供电有限公司 Short connection testing line
CN103280681A (en) * 2013-03-22 2013-09-04 国家电网公司 Universal combined short-circuit device for heavy current tests
CN103487615A (en) * 2013-09-23 2014-01-01 国家电网公司 Wire clamp special for testing of transformer
CN203479847U (en) * 2013-09-30 2014-03-12 国家电网公司 Wire clamp for testing DC resistance of transformer or loop resistance of circuit breaker
CN204858223U (en) * 2015-07-24 2015-12-09 国网山东新泰市供电公司 Novel transformer capacity test three -phase short -circuit connector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202421237U (en) * 2011-12-12 2012-09-05 偃师市供电有限公司 Short connection testing line
CN103280681A (en) * 2013-03-22 2013-09-04 国家电网公司 Universal combined short-circuit device for heavy current tests
CN103487615A (en) * 2013-09-23 2014-01-01 国家电网公司 Wire clamp special for testing of transformer
CN203479847U (en) * 2013-09-30 2014-03-12 国家电网公司 Wire clamp for testing DC resistance of transformer or loop resistance of circuit breaker
CN204858223U (en) * 2015-07-24 2015-12-09 国网山东新泰市供电公司 Novel transformer capacity test three -phase short -circuit connector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106841698A (en) * 2017-01-12 2017-06-13 国家电网公司 Short circuit fixture is used in a kind of transformer loss experiment
CN109406837A (en) * 2018-11-01 2019-03-01 国家电网有限公司 Power transformer high-potting multifunctional access wire clamp

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Application publication date: 20170111