Tool for live replacement of over-voltage protection device of distribution line

A technology for protection devices and power distribution lines, applied in the direction of overhead lines/cable equipment, etc., to achieve the effects of shortening customer power outage time, increasing electricity sales, and improving reliability

Active Publication Date: 2012-07-18
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The overvoltage protection device is a very effective device to avoid lightning tripping and lightning disconnection of the overhead insulated conductors of the distribution network. However, the device will inevitably fail and be damaged during use. At present, how to replace the damaged There is no better solution for the overvoltage protection device and how to make the wire contact with other substances in the working space during the replacement process

Method used

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  • Tool for live replacement of over-voltage protection device of distribution line
  • Tool for live replacement of over-voltage protection device of distribution line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0014] This embodiment is mainly used for ground potential work, and the purpose of replacing the overvoltage protection device in the 10kV power distribution line is achieved by lifting the wire. Such as figure 1 As shown, a tool for replacing the overvoltage protection device with power on the distribution line, the overvoltage protection device 25 and the insulator are arranged in parallel between the wire and the cross arm 14, and the tool includes an insulating support and an insulating operating rod. The insulating bracket includes a bracket body 11 and a fastening member, the lower end of the bracket body 11 is fixed on the line cross-arm 14 through the fastening member, and the upper end withstands the wire; the insulating operating rod includes a chuck 21, a fastening Bolt, upper cover 22 and lower cover 23, one end of the chuck 21 passes through the upper cover 22 and is fixed, the lower cover 23 is connected with the upper cover 22 by fastening bolts, and the suppor...

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PUM

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Abstract

The invention relates to a tool for the live replacement of an over-voltage protection device of a distribution line. The distribution line comprises a conducting wire, a cross arm, an insulator and the over-voltage protection device, wherein the over-voltage protection device and the insulator are arranged in parallel between the conducting wire and the cross arm. The tool comprises an insulating bracket and an insulating operating rod. The insulating bracket comprises a bracket body and a fastening component. The lower end of the bracket body is fixed on the cross arm of the line through the fastening component, and the upper end of the bracket body jacks the conducting wire. The insulating operating rod comprises a chuck, a fastening bolt, an upper cover and a lower cover. One end of the chuck penetrates through the upper cover, and then is fixed. The lower cover is connected with the upper cover through the fastening bolt. After the bracket body jacks the conducting wire, the chuck clamps the over-voltage protection device. Compared with the prior art, the tool has the advantages of ensuring live work, shortening interruption duration, increasing a power supply volume, and the like.

Description

technical field [0001] The invention relates to a tool in the field of electrical construction, in particular to a tool for live replacement of an overvoltage protection device for a power distribution line. Background technique [0002] Nowadays, as the overhead distribution lines are gradually insulated, it solves the corridor and safety problems that bare wires cannot solve, but the problem of lightning disconnection is very prominent. The overvoltage protection device is a very effective device to avoid lightning tripping and lightning disconnection of the overhead insulated conductors of the distribution network. However, the device will inevitably fail and be damaged during use. At present, how to replace the damaged There is no better solution for the overvoltage protection device and how to keep the wires in contact with other substances in the workspace during the replacement process. Contents of the invention [0003] The purpose of the present invention is to p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/02
Inventor 钱杏兴张正钧吴刚季竹君
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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