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Moving contact button contact and rain cover for isolating switch

A technology of isolating switches and moving contacts, which is applied in the direction of air switch components, etc., can solve unreliable problems, achieve convenient sealing, better effect, and eliminate the effect of rainwater infiltration

Active Publication Date: 2014-08-13
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Moving contact button contact and rain cover for isolating switch
  • Moving contact button contact and rain cover for isolating switch
  • Moving contact button contact and rain cover for isolating switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment one: if Figure 1~5 As shown, a movable contact finger 1 and a rainproof cover 2 for an isolating switch include a movable contact finger 1 and a rainproof cover 2, and the movable contact finger 1 has a U-shaped groove structure, so The groove of the moving contact finger 1 is provided with a solid block 11 that completely cuts off the groove, and the outer wall of the moving contact finger 1 is surrounded by an annular block 12 that wraps the solid block 11 inside. The moving contact finger 1, the solid block 11 and the annular block 12 are made into one body, and the rainproof 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, the upper side of the solid block 11 is sloped so that the rainwater can flow down and not stay in the ...

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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 a disconnector in a power system, in particular to a moving contact finger and a rainproof cover for a GW16 (17) disconnector. Background technique [0002] GW16 (17) type isolating switch is widely used in high-voltage systems. It is a single-arm telescopic structure and must have reliable anti-water measures. However, in actual operation, water ingress and moisture in the upper conductive tube generally cause corrosion of its internal components, and even cause spring breakage, making it impossible to perform normal opening and closing operations. Corrosion has become the biggest hidden danger to the safe operation of disconnectors. For the problem of water ingress, the main method adopted at present is to use glass glue to seal and increase weep holes for drainage treatment. [0003] With the existing anti-water ingress measures, cracks will occur at the glas...

Claims

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Application Information

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