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Method for shielding surface leakage current of lightning arrester

A surface leakage and lightning arrester technology, which is applied in the field of lightning arresters, can solve problems such as the influence of measurement results, achieve the effects of reducing equipment operation and maintenance work, preventing falling, and improving accuracy

Pending Publication Date: 2021-09-28
CHINA DATANG CORP SCI & TECH RES INST CO LTD EAST CHINA BRANCH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for shielding the surface leakage current of the arrester to solve the influence of the external surface current on the measurement results when the MOA full current live detection is working

Method used

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  • Method for shielding surface leakage current of lightning arrester
  • Method for shielding surface leakage current of lightning arrester
  • Method for shielding surface leakage current of lightning arrester

Examples

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Embodiment 1

[0046] refer to figure 1 , figure 2 , image 3 and Figure 4 , figure 1 It is a schematic structural diagram of a grounding component in a method for shielding the surface leakage current of an arrester provided in an embodiment of the present invention, figure 2 It is a schematic structural diagram of the connection between the first box body 6 and the second box body 7 in a method for shielding the surface leakage current of the arrester provided by the embodiment of the present invention, image 3 It is a schematic structural diagram of the first box in a method for shielding the surface leakage current of a lightning arrester provided by an embodiment of the present invention, Figure 4 It is a schematic structural diagram of the second box body in a method for shielding the surface leakage current of a lightning arrester provided by an embodiment of the present invention. The device includes:

[0047] A grounding component is used to be sleeved on the arrester, and t...

Embodiment 2

[0085] A method for shielding surface leakage current of an arrester, comprising the following steps:

[0086] S1. Set the grounding component on the arrester, and the grounding end of the grounding component is grounded;

[0087] S2. The first box body 6 is set on the second box body 7 to increase the measurement height, and then the two ends of the grounding assembly are connected to the drive assembly 5 inside the first box body, and the drive assembly 5 is turned on, and the drive assembly 5 works , The drive assembly 5 is stretched so that the drive assembly 5 is closely attached to the arrester.

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Abstract

The invention relates to a method for shielding a surface leakage current of a lightning arrester. In the method, a grounding assembly used to sleeve the lightning arrester and comprising a grounding end which is grounded; a driving assembly which is connected with the two ends of the grounding assembly, and works to enable the grounding assembly to be in close contact with the lightning arrester; a first box body in which the driving assembly is arranged; a second box body of which the top is detachably connected with the bottom of the driving assembly, are included. According to the invention, the first box body and the second box body are connected together to play a supporting role, the driving assembly works to enable the grounding assembly to be in close contact with the lightning arrester, the grounding assembly is prevented from falling off, and one end of the grounding assembly is grounded, so that the function of shielding the leakage current on the outer surface of the lightning arrester can be realized, and the influence of the current on the outer surface on a measurement result is overcome during the full-current live-line detection work of an MOA.

Description

technical field [0001] The invention relates to the technical field of lightning arresters, in particular to a method for shielding surface leakage current of lightning arresters. Background technique [0002] Metal Oxide Arrester (MOA) has become an important electrical device to limit overvoltage in power system due to its advantages of good nonlinearity, large flow capacity and no power frequency freewheeling. In order to prevent arrester failures caused by insulation aging or internal moisture during the operation of zinc oxide arresters in AC systems, the current power industry generally implements MOA full-current live detection work to monitor the health of MOA operations. [0003] The full current of MOA under AC voltage can be decomposed into capacitive current and resistive current. Under normal conditions, the resistive current accounts for only about 5% to 20%. When the MOA internal valve is damp and the valve is aging, the full current changes little, but the r...

Claims

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Application Information

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IPC IPC(8): G01R1/18G01R1/04
CPCG01R1/18G01R1/0408G01R1/0416
Inventor 赵淼张二龙李飞杨玉磊杨庆贺胡月鹏蓝东亮高乃收赵远周梓菲黎帅涂寅范厚良
Owner CHINA DATANG CORP SCI & TECH RES INST CO LTD EAST CHINA BRANCH
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