Isolation switch and contact assembly thereof

A contact assembly and isolating switch technology, applied in the direction of electric switches, high voltage/high current switches, electrical components, etc., can solve the problem of moving arc contact shunting, etc., to ensure compactness, stability, and fixed form selectivity many effects

Active Publication Date: 2017-04-19
HENAN PINGGAO ELECTRIC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a disconnector to solve the problem that the moving arc contact shunts current when the moving arc contact and the coil of the disconnector in the prior art are connected in parallel to cause an arc; the purpose of the present invention is also to provide a The contact assembly of the isolating switch

Method used

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  • Isolation switch and contact assembly thereof
  • Isolation switch and contact assembly thereof
  • Isolation switch and contact assembly thereof

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Embodiment Construction

[0026] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0027] Specific embodiments of the contact assembly of the present invention, such as Figure 1 to Figure 2 As shown, the contact assembly is a moving contact assembly in a disconnector, which includes a moving main contact 1 whose axis extends left and right. It is made of 6063 aluminum, and the outer surface is plated with silver to reduce the contact resistance coefficient and ensure The effective electrical contact between the moving main contact 1 and the main conductive circuit, the moving main contact 1 is provided with a through hole extending along the axis, and an inner flange is arranged in the through hole near the right end, and a screw is passed on the inner flange 2 is connected with a copper contact seat 3 (that is, a conductive seat). The copper contact seat 3 is a cylindrical structure with an outer flange at one end. The copper contact...

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Abstract

The invention relates to an isolation switch and a contact assembly thereof; the contact assembly comprises a main contact and an arc contact, wherein the main contact is provided with an insulation support; the arc contact is arranged on the insulation support; the arc contact is electrically connected with the main contact through a petersen coil winding on the periphery of the insulation support, thus ensuring electric current to pass the arc contact, the coil and the main contact in order, ensuring the magnetic field intensity in the coil, further improving arc extinguishing effect, and minimizing the arc contact diversion effect; in addition, the end portion of the petersen coil can be only provided with the arc contact of a small structure, thus saving cost.

Description

technical field [0001] The invention relates to the field of high-voltage switches, in particular to an isolating switch and a contact assembly thereof. Background technique [0002] In a double-bus GIS, usually a single bus is operated. When the bus needs to be changed, due to the difference between the two buses, the disconnector needs to have the switching current and switching voltage of the bus, especially in ultra-high voltage. The double busbars are long, the current capacity is large, and the difference between the two busbars is large, which leads to the bus switching current at the beginning of the disconnector up to 1600A, and the voltage up to 400V, which puts forward strict requirements for the disconnector, which requires the disconnector Very strong arc extinguishing ability, the traditional way is mainly to increase the opening and closing speed of the isolating switch, thereby improving the breaking ability of the isolating switch to the bus conversion curre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/18H01H33/12
CPCH01H33/12H01H33/18
Inventor 盛健彭曼李健殷东阳庞建张海涛李杏武刘超峰陈英刘旭刘小浩
Owner HENAN PINGGAO ELECTRIC
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