CN203849288U - Wiring conversion device for electrical routine tests of transformer - Google Patents

Wiring conversion device for electrical routine tests of transformer Download PDF

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Publication number
CN203849288U
CN203849288U CN201420215752.5U CN201420215752U CN203849288U CN 203849288 U CN203849288 U CN 203849288U CN 201420215752 U CN201420215752 U CN 201420215752U CN 203849288 U CN203849288 U CN 203849288U
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CN
China
Prior art keywords
binding post
transformer
group
test
test apparatus
Prior art date
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Active
Application number
CN201420215752.5U
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Chinese (zh)
Inventor
王楠
吴东
王伟
张黎明
李苏雅
曹梦
魏菊芳
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 Tianjin Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Tianjin Electric Power Co Ltd
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Priority to CN201420215752.5U priority Critical patent/CN203849288U/en
Application granted granted Critical
Publication of CN203849288U publication Critical patent/CN203849288U/en
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Abstract

The utility model relates to a wiring conversion device for electrical routine tests of a transformer, which is technically characterized by comprising an insulating panel, a transformer binding post group, change-over switch groups, a test instrument binding post group, a short-circuit binding post and a grounding binding post, wherein the transformer binding post group, the change-over switch groups and the test instrument binding post group are installed on the insulating panel, and the transformer binding post group is connected with the test instrument binding post group through the change-over switch groups; the change-over switch group comprises a grounding state, a connecting state, a short-circuit state and an open-circuit state; and the short-circuit binding post is connected with short-circuit state points of the change-over switch groups, and the grounding binding post is connected with grounding state points of the change-over switch groups. The wiring conversion device provided by the utility model is reasonable in design, improves the test efficiency, ensures the accuracy of test results, effectively solves a problem of frequent wire connecting and disconnecting in the process of electrical routine tests of the transformer, and has the advantages of simple structure, safety, reliability, convenient use and the like.

Description

The electric routine test connecting wire switching device of transformer
Technical field
The utility model belongs to transformer technology field, the electric routine test connecting wire switching device of especially a kind of transformer.
Background technology
Electric routine test is to judge that transformer has flawless important means.The project of the electric routine test of transformer comprises dielectric loss and the electric capacity etc. of winding and iron core (folder) insulation resistance, winding D.C. resistance and winding, sleeve pipe.Due to the mode of connection difference of each pilot project, scene need to disconnect continually lineman and do on transformer body, not only expend a large amount of time, and also there is certain potential safety hazard in work high above the ground repeatedly, in addition, the mode of three-phase shortcircuit, ground connection is changed frequently, also easily causes the insecure situation of wiring, affects the accuracy of test findings.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of transformer electric routine test connecting wire switching device, has solved the problem that frequently disconnects line in the electric routine test process of transformer.
The utility model solves its technical matters and takes following technical scheme to realize:
The electric routine test connecting wire switching device of a kind of transformer, comprise insulating panel, transformer binding post group, switch group, test apparatus binding post group, short circuit binding post and ground connection binding post, described transformer binding post group, switch group, test apparatus binding post group are arranged on insulating panel, and transformer binding post group is connected with test apparatus binding post group by switch group; Described switch group comprises ground connection, connection, short circuit, four kinds of states of open circuit; Described short circuit binding post is connected with the short-circuit condition point of switch group, and described ground connection binding post is connected with the ground state point of switch group.
And, described transformer binding post group comprises that 12 transformer binding posts are for connection transformer, described test apparatus binding post group comprises that 12 test apparatus binding posts are for joint test instrument, the quantity of described switch group is 12, is connected with test apparatus binding post respectively at transformer binding post.
And described transformer binding post, switch and test apparatus binding post divide three rows to be arranged on insulating panel.
And described insulating panel adopts epoxide resin material to make.
And, between described switch and transformer binding post, test apparatus wiring and short circuit binding post and ground connection binding post, be all connected by insulated conductor.
Advantage of the present utility model and good effect are:
The utility model is reasonable in design, by transformer binding post, switch, test apparatus binding post, short circuit binding post and ground connection binding post are set on insulating panel and by switch to the electric routine test of transformer, can be completely achieved mode of connection adjustment in test, improve test efficiency, guarantee the accuracy of test findings, effectively solve the problem that frequently disconnects line in the electric routine test process of transformer, there is the advantages such as simple in structure, safe and reliable, easy to use.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is further described:
The electric routine test connecting wire switching device of a kind of transformer, as shown in Figure 1, comprise insulating panel, transformer binding post group, switch group, test apparatus binding post group, short circuit binding post G and ground connection post head N, described transformer binding post group, switch group, test apparatus binding post component three rows are arranged on insulating panel, and transformer binding post group is connected with test apparatus binding post group by switch group.Described insulating panel adopts epoxide resin material, and for realizing the insulation function between each binding post, withstand voltage is greater than medium loss test voltage 10kV.Described transformer binding post group, for connection transformer, according to designing maximum connection of three-phase transformer, comprises that high, medium and low three-phase line end and neutral point amount to 12 transformer binding posts, are respectively binding post 1-1 to 1-12 altogether; Described test apparatus binding post group is for joint test instrument, corresponding with transformer binding post, amounts to 12 test apparatus binding posts, is respectively binding post 2-1 to 2-12.Described switch group, for realizing the conversion of the mode of connection, comprises 12 switches, and each switch comprises ground connection, connection, short circuit, four kinds of states of open circuit, and corresponding switch is respectively in a, b, c, d position.Described short circuit binding post is connected with the short-circuit condition location point of each switch, applies trial voltage during for insulation resistance and medium loss test; Described ground connection binding post is connected for being grounded function with the ground state location point of each switch.Between above-mentioned switch and transformer binding post, test apparatus wiring and short circuit binding post G and ground connection post head N, be all connected by insulated conductor, insulated conductor is used for realizing connecting one to one and realizing the three-phase shortcircuit function between the corresponding binding post of transformer between transformer binding post and test apparatus binding post by switch.
As an example of a kind of three-phase transformer example, the utility model is described below, it is YNyn0d11 that this transformer connects group:
(1) by high transformer, middle line ball end and neutral point and the corresponding access of low pressure line end transformer binding post 1-1 to 1-11, wherein, the corresponding high pressure A of 1-1 phase line end, the corresponding high pressure B of 1-2 phase line end,, the corresponding low pressure C of 1-11 phase line end, by ground connection post head N ground connection.
(2) winding D.C. resistance test: directly hinder mutually test as example taking high pressure A, instrument for measuring DC resistance is accessed in test apparatus binding post 2-1 and 2-4, switch 1,4 is transformed into link position b, and other switches are all transformed into open-circuit position d, can carry out winding D.C. resistance test.
(3) insulation resistance and medium loss test: taking high pressure centering pressure, low pressure and ground absolutely resistance and Dielectric Loss Test as example, by dielectric loss tester High voltage output access short circuit binding post G, switch 1 to 4 is transformed into location of short circuit c, switch 5 to 11 is transformed into earthing position a, can carries out insulation resistance and medium loss test.
It is emphasized that; embodiment described in the utility model is illustrative; instead of determinate; therefore the utility model comprises and is not limited to the embodiment described in embodiment; every other embodiments that drawn according to the technical solution of the utility model by those skilled in the art, belong to the scope that the utility model is protected equally.

Claims (5)

1. the electric routine test connecting wire switching device of transformer, it is characterized in that: comprise insulating panel, transformer binding post group, switch group, test apparatus binding post group, short circuit binding post and ground connection binding post, described transformer binding post group, switch group, test apparatus binding post group are arranged on insulating panel, and transformer binding post group is connected with test apparatus binding post group by switch group; Described switch group comprises ground connection, connection, short circuit, four kinds of states of open circuit; Described short circuit binding post is connected with the short-circuit condition point of switch group, and described ground connection binding post is connected with the ground state point of switch group.
2. the electric routine test connecting wire switching device of transformer according to claim 1, it is characterized in that: described transformer binding post group comprises that 12 transformer binding posts are for connection transformer, described test apparatus binding post group comprises that 12 test apparatus binding posts are for joint test instrument, the quantity of described switch group is 12, is connected with test apparatus binding post respectively at transformer binding post.
3. the electric routine test connecting wire switching device of transformer according to claim 2, is characterized in that: described transformer binding post, switch and test apparatus binding post divide three rows to be arranged on insulating panel.
4. according to the electric routine test connecting wire switching device of the transformer described in claims 1 to 3 any one, it is characterized in that: described insulating panel adopts epoxide resin material to make.
5. according to the electric routine test connecting wire switching device of the transformer described in claims 1 to 3 any one, it is characterized in that: between described switch and transformer binding post, test apparatus wiring and short circuit binding post and ground connection binding post, be all connected by insulated conductor.
CN201420215752.5U 2014-04-30 2014-04-30 Wiring conversion device for electrical routine tests of transformer Active CN203849288U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420215752.5U CN203849288U (en) 2014-04-30 2014-04-30 Wiring conversion device for electrical routine tests of transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420215752.5U CN203849288U (en) 2014-04-30 2014-04-30 Wiring conversion device for electrical routine tests of transformer

Publications (1)

Publication Number Publication Date
CN203849288U true CN203849288U (en) 2014-09-24

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CN201420215752.5U Active CN203849288U (en) 2014-04-30 2014-04-30 Wiring conversion device for electrical routine tests of transformer

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CN (1) CN203849288U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105911356A (en) * 2016-06-24 2016-08-31 中车唐山机车车辆有限公司 Device for testing insulation resistance of main transformer
CN106932613A (en) * 2017-03-10 2017-07-07 国网青海省电力公司西宁供电公司 A kind of 35kV and 110kV transformers routine test wiring cross box
CN108414796A (en) * 2018-02-10 2018-08-17 国家电网公司 The general interconnecting device of portable transformer high-potting
CN111707887A (en) * 2020-05-22 2020-09-25 国网河北省电力有限公司保定供电分公司 Optimal scheme for routine test of power transformer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105911356A (en) * 2016-06-24 2016-08-31 中车唐山机车车辆有限公司 Device for testing insulation resistance of main transformer
CN106932613A (en) * 2017-03-10 2017-07-07 国网青海省电力公司西宁供电公司 A kind of 35kV and 110kV transformers routine test wiring cross box
CN108414796A (en) * 2018-02-10 2018-08-17 国家电网公司 The general interconnecting device of portable transformer high-potting
CN111707887A (en) * 2020-05-22 2020-09-25 国网河北省电力有限公司保定供电分公司 Optimal scheme for routine test of power transformer

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP02 Change in the address of a patent holder

Address after: 300010 Tianjin city Hebei District Wujing Road No. 39

Patentee after: State Grid Corporation of China

Patentee after: State Grid Tianjin Electric Power Company

Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Patentee before: State Grid Corporation of China

Patentee before: State Grid Tianjin Electric Power Company