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A moving contact finger and rain cover for isolation switch

A technology of isolating switch and moving contact, applied in the direction of air switch parts, etc., can solve problems such as unreliability, achieve convenient sealing, better effect, and eliminate the effect of rainwater infiltration

Active Publication Date: 2016-02-03
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, it must be blocked. It is unreliable to rely too much on excretion

Method used

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  • A moving contact finger and rain cover for isolation switch
  • A moving contact finger and rain cover for isolation switch
  • A moving contact finger and rain cover for isolation switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: as Figures 1~5 As shown, a moving contact finger 1 and a rainproof cover 2 for an isolating switch include a moving contact finger 1 and a rainproof cover 2. The moving contact finger 1 is in a zigzag groove structure, so The groove of the moving contact finger 1 is provided with a solid block 11 that completely separates the groove. The outer side wall of the moving contact finger 1 is surrounded by an annular block 12 that wraps the solid block 11. The moving contact finger 1, the solid block 11 and the annular block 12 are made into one piece, and the rain cover 2 is provided with four through holes for the moving contact finger 1 to pass through. An upwardly protruding annular sealing body 21 is provided, and the annular sealing body 21 completely wraps the annular block 12 of the moving contact finger.

[0024] In this embodiment, in order to allow rainwater to flow downstream and not stay in the groove of the contact finger 1 of the movable contact, t...

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PUM

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Abstract

The invention relates to a moving contact button contact and a rain cover for an isolating switch. The moving contact button contact is of a right-angled U-shaped groove structure. A solid block which completely partitions the groove is arranged in the groove of the moving contact button contact. An annular block which is wrapped outside the solid block is arranged on the outer side wall of the moving contact button contact in a surrounding mode. The moving contact button contact, the solid block and the annular block are formed integrally. The rain cover is provided with a plurality of through holes for moving contact button contacts to penetrate through. An annular sealing body which protrudes upwards is arranged at the edge of the top of each through hole. The annular blocks of the moving contact button contacts are completely wrapped in the annular sealing bodies. The moving contact button contact and the rain cover improve equipment quality and waterproof performance of equipment operation safety, prolong service life of equipment, decrease the repair rate of the equipment, and lower cost.

Description

technical field [0001] The invention relates to an equipment assembly element for ensuring the safe operation of an isolating switch in a power system, in particular to a moving contact finger and a rainproof cover for the GW16 (17) type isolating switch. Background technique [0002] GW16 (17) isolating switch is widely used in high-voltage systems. It belongs to a single-arm telescopic structure and must have reliable anti-water measures. However, in actual operation, there is a common occurrence of water inflow and dampness on the conductive tube, which leads to corrosion of its internal components, and even causes the spring to break, making it impossible to perform normal opening and closing operations. Corrosion has become the biggest hidden danger for the safe operation of the disconnector. For the problem of water inflow, the main method currently used is to seal with glass glue and increase the drainage hole for drainage treatment. [0003] With the existing anti-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H31/02
Inventor 孙亚辉
Owner STATE GRID CORP OF CHINA