Special assorted tool for changing leakage current meter of lightning arrester in live-working state and working method

A leakage current, live replacement technology, applied in electrical components, cable installation, cable installation devices, etc., can solve the problems of long maintenance cycle, reduce the reliability of system power supply, etc., achieve simple and reliable wiring, easy to carry and install, and ensure safety. Effect

Active Publication Date: 2016-08-10
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most operation and maintenance personnel replace the leakage current meter by first applying for a power outage through dispatching, and then complete the replacement of the faulty leakage current meter when the equipment is not powered. The maintenance cycle is long and the reliability of the system power supply is reduced.

Method used

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  • Special assorted tool for changing leakage current meter of lightning arrester in live-working state and working method
  • Special assorted tool for changing leakage current meter of lightning arrester in live-working state and working method
  • Special assorted tool for changing leakage current meter of lightning arrester in live-working state and working method

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Experimental program
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Effect test

Embodiment Construction

[0029] like figure 1 As shown, when the present invention is carrying out the work of replacing the leakage current meter while the lightning arrester is live, the special complete set of tools can be modularized and assembled in multiple special tool combinations.

[0030] The whole set of special tools is a toolbox. The upper cover 10 and the box body 2 of the toolbox are all pressed by insulating materials such as epoxy resin, and there are screw holes 9 at the corresponding positions of the four corners of the upper cover 10 and the box body 2. The screw holes 9 of the upper cover 10 and the box body 2 are used to fix the insulating support 7. The insulating support 7 should be a porcelain insulator or a composite insulator with an umbrella skirt, good insulation and reliable strength. There are screws at both ends of the insulator 1, which can be fixed on Four corner screw holes 9.

[0031] The staff can stand on the upper cover 10 of the toolbox when replacing the leaka...

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PUM

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Abstract

The invention provides a special assorted tool for changing a leakage current meter of a lightning arrester in a live-working state. The tool comprises a tool box, the tool box comprises an upper cover and a box body, the upper cover and the box body are made of insulating materials, screw holes are formed in the upper cover and the box body, the position of the screw hole in the upper cover corresponds to the position of the screw hole in the box body, an insulating support is connected between the screw hole in the upper cover and the screw hole in the box body, and the insulating support is a porcelain insulator or a composite insulator. The tool provided by the invention guarantees a new working mode of changing the leakage current meter of the lightning arrester in the live-working state, thereby avoiding the power cut demand.

Description

technical field [0001] The invention relates to a maintenance device for replacing a leakage current meter with electricity on a lightning arrester. Background technique [0002] Surge arrester is one of the important protection devices to ensure the safe operation of the power system. It is mainly used to limit the overvoltage of the system. The leakage current is a very important reference index for evaluating the quality of the arrester. If the leakage current meter fails, it may cause leakage current error. Therefore, it is very important to keep the leakage current meter of the arrester in good condition at all times. At present, most operation and maintenance personnel replace the leakage current meter by first applying for a power outage through dispatching, and then complete the replacement of the faulty leakage current meter when the equipment is not charged. The maintenance cycle is long and the reliability of the system power supply is reduced. Contents of the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B3/00H02G1/00
CPCH02B3/00H02G1/00
Inventor 郭磊寇晓适张科丁国君董曼玲王天王伟赵磊李予全郑含博邵颖彪王栋付海金蒲兵舰辛伟峰王吉王震宇马德英
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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