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A live maintenance device for isolating switch contacts

A technology of isolating switch and maintenance device, applied in switch devices, electrical components and other directions, can solve the problems of equipment outage, potential safety hazards, inconvenient manual maintenance and climbing operations, etc., and achieve the effect of improving cleaning effect and simple operation.

Active Publication Date: 2015-12-30
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method must put the equipment out of service, and manual maintenance involves high-elevation operations, which is very inconvenient, and there are also potential safety hazards

Method used

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  • A live maintenance device for isolating switch contacts
  • A live maintenance device for isolating switch contacts

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Embodiment Construction

[0018] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with specific embodiments:

[0019] Such as figure 1 As shown, a disconnector switch contact live maintenance device includes a frame plate 1, the upper side of the front end of the frame plate 1 is provided with a fixing part 2 for fixing the rainproof cap of the static contact of the disconnector switch, and the lower end of the frame plate 1 is provided with a cleaning part 3. The rear end of the shelf plate 1 is provided with a power device 4 for pushing the cleaning part 3 to move back and forth and a liquid spray device 5 for spraying liquid to the static contact of the disconnector. The cleaning part 3 includes a moving block 301, and the moving block 301 has two sides Each end is connected with a vertical first spring 302, and the first spring 302 is connected with a first connecting piece 303 arranged horizontally, and the o...

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Abstract

The invention aims to solve the problems in the prior art and provides a hot-line maintenance device for an isolation switch contact, wherein the hot-line maintenance device for the isolation switch contact is convenient to use and good in maintaining effect. The hot-line maintenance device for the isolation switch contact comprises a rack plate, wherein a fixing part used for fixing a rainproof cap of the isolation switch fixed contact is arranged on the upper side of the front end of the rack plate, a cleaning part is arranged at the lower end of the rack plate, a power device used for pushing the cleaning part move front and back and a liquid spraying device used for spraying liquid to the isolation switch fixed contact are arranged at the rear end of the rack plate, the cleaning part comprises a moving block, the left end and the right end of the moving block are respectively connected with a vertical first spring, the first springs are connected with first horizontally arranged connecting pieces, the other end of each first connecting piece is connected with a second vertical spring, and each second spring is wrapped in a piece of cleaning cloth. The device is good in cleaning effect, people and the device are separated in work, and safety is good.

Description

technical field [0001] The invention relates to the field of power systems, in particular to a live maintenance device for disconnector contacts. Background technique [0002] GW4, GW7 type isolating switches are widely used in 110kV and 220kV voltage level substations, and are the most widely used isolating switches. During the operation of GW4 and GW7 type isolating switches, due to the thermal effect of the current, overheating will occur when the contact resistance of the contacts is too large, and defects such as jamming of the static contact of the isolating switch and insufficient opening and closing may also occur from time to time. The main reason is that the moving and static contacts of the switch knife and the internal transmission accessories are very serious in dust accumulation, and the contact finger springs are corroded to varying degrees. The current treatment method for such defects: power off the equipment, and use manual maintenance to treat the contact...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B3/00
Inventor 刘松成张一军郝力军汪卫国郑晓东吕红峰温洁强江应沪应高亮赵寿生钱肖方旭光陈文通方凯周彪于利国吴杰清董升王翊之李阳徐阳建
Owner STATE GRID CORP OF CHINA
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