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Three-phase common-box earthed switch

A technology of isolating grounding switches and three-phase shared tanks, which is applied in the direction of grounding switches, electric switches, and switches with unconnected bridge contacts, etc., and can solve problems such as large space

Inactive Publication Date: 2013-10-30
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the rotary type, the direct type takes up more space

Method used

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  • Three-phase common-box earthed switch
  • Three-phase common-box earthed switch
  • Three-phase common-box earthed switch

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Embodiment Construction

[0032] In order to have a clearer understanding of the technical features, purposes and effects of the invention, the specific implementation of the present invention will now be described with reference to the accompanying drawings, in which the same reference numerals represent the same or structurally similar but functionally identical components.

[0033] In order to make the drawing concise, each drawing only schematically shows the parts related to the present invention, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked.

[0034] figure 1 The schematically shown three-phase common box isolating grounding switch of the present invention includes a casing 8 , three first conductors 1 and three second conductors 5 . The switch also includes three first static c...

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Abstract

The object of the present invention is to provide an isolating / grounding switch with three phases in one enclosure, which has a simple conductor shape and a higher space utilization rate. Such a switch comprises a housing, three first conductors and three second conductors. The switch also comprises three first static contacts each connected to one of the first conductors, three second static contacts each connected to one of the second conductors, three moving contacts connected by an insulator, and three grounding contacts electrically connected to the housing. Each first static contact and a corresponding first conductor have the same axis as a corresponding second static contact and a corresponding second conductor. Each moving contact can slide on a corresponding first conductor and is electrically connected to this first conductor. Each moving contact is electrically connected to a corresponding second static contact when at one end of a corresponding first conductor, and electrically connected to a corresponding grounding contact when at the other end of this first conductor.

Description

technical field [0001] The invention relates to a three-phase common box isolating and grounding switch, in particular to a three-phase common box isolating and grounding switch for metal-enclosed gas-insulated switchgear. Background technique [0002] In the metal-enclosed gas-insulated switchgear, the isolation function and grounding function and three working positions are generally realized by opening and closing the isolation grounding switch, namely the on position, the isolation position and the ground position. These isolating and earthing switches can be roughly divided into two types: rotary type and direct-acting type. The rotary type has a lower rated current and poor electrical performance due to the limitation of the contact mode. Therefore, metal-enclosed gas-insulated switchgear with high load mostly adopts direct-acting isolating and earthing switches. Chinese utility model 200820032556 discloses a direct-acting isolating grounding switch of this type. Com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H31/02H01H1/58
CPCH02B13/0352H01H31/24H01H1/38H01H31/003H02B13/075H01H2033/024H01H33/022H01H33/42
Inventor 陈艳平
Owner SIEMENS AG
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