CN204204726U - A kind of isolating switch - Google Patents

A kind of isolating switch Download PDF

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Publication number
CN204204726U
CN204204726U CN201420746552.2U CN201420746552U CN204204726U CN 204204726 U CN204204726 U CN 204204726U CN 201420746552 U CN201420746552 U CN 201420746552U CN 204204726 U CN204204726 U CN 204204726U
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CN
China
Prior art keywords
isolating switch
earth clip
utility
pedestal
model
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Active
Application number
CN201420746552.2U
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Chinese (zh)
Inventor
侯健伟
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BEIJING CED RAILWAY ELECTRIC TECH Co Ltd
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BEIJING CED RAILWAY ELECTRIC TECH Co Ltd
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Priority to CN201420746552.2U priority Critical patent/CN204204726U/en
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Publication of CN204204726U publication Critical patent/CN204204726U/en
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Abstract

The utility model discloses a kind of isolating switch, comprise: isolating switch pedestal (1) and isolating switch earth clip (4), isolating switch earth clip (4) is fixed on the bottom of isolating switch pedestal (1), and place, the top height of isolating switch earth clip (4) is lower than place, the top height of isolating switch pedestal (1).The utility model embodiment not only improves the Electric Field Distribution around isolating switch earth clip 4, reduce electric field strength, and the distance increased between isolating switch earth clip 4 and static contact isolation switch 5, thus significantly improve the electrical reliability of isolating switch.

Description

A kind of isolating switch
Technical field
The utility model relates to electrical safety technical field, particularly relates to a kind of isolating switch.
Background technology
Electric locomotive and motor train unit are all provided with isolating switch, and isolating switch needs disconnecting link 3 to be inserted on isolating switch earth clip 4 when ground connection.In the prior art, as depicted in figs. 1 and 2, isolating switch earth clip 4 and insulating supporting post 2 are all fixed on the top of isolating switch pedestal 1, namely isolating switch earth clip 4 protrudes from the upper surface of isolating switch pedestal 1, and the distance therefore between isolating switch earth clip 4 and static contact isolation switch 5 is less, again because the Electric Field Distribution on isolating switch earth clip 4 is extremely uneven, field intensity value is very large, therefore when isolating switch is in closure state, be connected to the disconnecting link 3 on static contact isolation switch 5, and the distance between isolating switch earth clip 4 is large not, produce between the high-voltage of earth potential on isolating switch earth clip 4 easily and on disconnecting link 3 and discharge, and when isolating switch is in ground state, be inserted into the disconnecting link 3 on isolating switch earth clip 4, and the distance between static contact isolation switch 5 is large not, produce between the high-voltage at the isolation fracture place earth potential easily and on disconnecting link 3 and discharge, this seriously reduces the electrical security of isolating switch.
Summary of the invention
For above-mentioned weak point of the prior art, the utility model provides a kind of isolating switch, not only improve the Electric Field Distribution around isolating switch earth clip 4, reduce electric field strength, and the distance increased between isolating switch earth clip 4 and static contact isolation switch 5, thus significantly improve the electrical reliability of isolating switch.
The purpose of this utility model is achieved through the following technical solutions:
A kind of isolating switch, comprising: isolating switch pedestal 1 and isolating switch earth clip 4, isolating switch earth clip 4 is fixed on the bottom of isolating switch pedestal 1.
Preferably, place, the top height of isolating switch earth clip 4 is lower than place, the top height of isolating switch pedestal 1.
The technical scheme provided as can be seen from above-mentioned the utility model, isolating switch earth clip 4 has been fixed on the bottom of isolating switch pedestal 1 by the isolating switch that the utility model embodiment provides, thus make isolating switch earth clip 4 between two vertical baffles of isolating switch pedestal 1, therefore the electric field of isolating switch earth clip 4 is isolated switch base 1 and shields, Electric Field Distribution around isolating switch earth clip 4 is effectively improved, and the electrical reliability of isolating switch effectively improves.Simultaneously, because isolating switch earth clip 4 has been fixed on the bottom of isolating switch pedestal 1, place, the top height of isolating switch earth clip 4 decreases, and this can increase the distance between isolating switch earth clip 4 and static contact isolation switch 5, thus significantly improves the electrical reliability of isolating switch.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of isolating switch of the prior art when closure state.
Fig. 2 is the structural representation of isolating switch of the prior art when ground state.
The structural representation of the isolating switch that Fig. 3 provides for the embodiment of the present invention when closure state.
The structural representation of the isolating switch that Fig. 4 provides for the embodiment of the present invention when ground state.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on embodiment of the present utility model, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection range of the present utility model.
Below the isolating switch that the utility model embodiment provides is described in detail.
Embodiment one
As shown in Figure 3 and Figure 4, a kind of isolating switch, its concrete structure comprises: isolating switch pedestal 1 and isolating switch earth clip 4, isolating switch earth clip 4 is fixed on the bottom of isolating switch pedestal 1, and place, the top height of isolating switch earth clip 4 is lower than place, the top height of isolating switch pedestal 1.
Particularly, isolating switch earth clip 4 has been fixed on the bottom of isolating switch pedestal 1 by this isolating switch, thus make isolating switch earth clip 4 between two vertical baffles of isolating switch pedestal 1, therefore the electric field on isolating switch earth clip 4 is isolated switch base 1 and shields, Electric Field Distribution around isolating switch earth clip 4 is effectively improved, and the electrical reliability of isolating switch effectively improves.Simultaneously, because isolating switch earth clip 4 has been fixed on the bottom of isolating switch pedestal 1, place, the top height of isolating switch earth clip 4 decreases, preferably lower than place, the top height of isolating switch pedestal 1, this can increase the distance between isolating switch earth clip 4 and static contact isolation switch 5, thus significantly improves the electrical reliability of isolating switch.
Further, because the distance between isolating switch earth clip 4 and static contact isolation switch 5 increases, therefore the height of insulating supporting post 2 suitably can reduce when keeping electrical safety distance, and this not only can conservation cost, and can improve the compactedness of product.
As fully visible, the utility model embodiment not only improves the Electric Field Distribution around isolating switch earth clip 4, reduce electric field strength, and increase the distance between isolating switch earth clip 4 and static contact isolation switch 5, thus significantly improve the electrical reliability of isolating switch.
The above; be only the utility model preferably embodiment; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claims.

Claims (2)

1. an isolating switch, comprising: isolating switch pedestal (1) and isolating switch earth clip (4), is characterized in that, isolating switch earth clip (4) is fixed on the bottom of isolating switch pedestal (1).
2. isolating switch according to claim 1, is characterized in that, place, the top height of isolating switch earth clip (4) is lower than place, the top height of isolating switch pedestal (1).
CN201420746552.2U 2014-12-02 2014-12-02 A kind of isolating switch Active CN204204726U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420746552.2U CN204204726U (en) 2014-12-02 2014-12-02 A kind of isolating switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420746552.2U CN204204726U (en) 2014-12-02 2014-12-02 A kind of isolating switch

Publications (1)

Publication Number Publication Date
CN204204726U true CN204204726U (en) 2015-03-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420746552.2U Active CN204204726U (en) 2014-12-02 2014-12-02 A kind of isolating switch

Country Status (1)

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CN (1) CN204204726U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112490058A (en) * 2020-12-24 2021-03-12 北京中车赛德铁道电气科技有限公司 Vehicle-mounted pneumatic high-voltage isolating switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112490058A (en) * 2020-12-24 2021-03-12 北京中车赛德铁道电气科技有限公司 Vehicle-mounted pneumatic high-voltage isolating switch

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