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Device for shielding surface leakage current of lightning arrester

A surface leakage, arrester technology, applied in the field of arresters, can solve the problem of measurement result influence and so on

Pending Publication Date: 2021-09-14
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 device for shielding the surface leakage current of the lightning 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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  • Device for shielding surface leakage current of lightning arrester
  • Device for shielding surface leakage current of lightning arrester
  • Device for shielding surface leakage current of lightning arrester

Examples

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Embodiment 1

[0048] 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 surface leakage current shielding arrester device provided in an embodiment of the present invention, figure 2 A structural schematic diagram of the connection of the first box body 6 and the second box body 7 in a surface leakage current shielding arrester device provided by the embodiment of the present invention, image 3 It is a schematic structural diagram of the first box in a surface leakage current shielding arrester device provided by an embodiment of the present invention, Figure 4 A schematic structural diagram of the second box in a device for shielding the surface leakage current of a lightning arrester provided by an embodiment of the present invention, the device includes:

[0049] A grounding component is used to be sleeved on the arrester, and the grounding component includes a grounding terminal;

[0050] The driv...

Embodiment 2

[0086] A method for shielding a leakage current of an arrester, comprising the following steps:

[0087] S1. Set the grounding component on the arrester, and the grounding end of the grounding component is grounded;

[0088] 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 device for shielding surface leakage current of a lightning arrester, and the device comprises: a grounding assembly which is used for sleeving the lightning arrester and comprises a grounding end which is grounded; a driving assembly which is connected with the two ends of the grounding assembly, wherein the driving assembly works to enable the grounding assembly to be in close contact with the lightning arrester; and a driving assembly which is arranged in the first box body, wherein the top of the second box body is detachably connected with the bottom of the driving assembly. 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 leakage current on the outer surface of the alternating current lightning arrester can be realized, and the influence of the current on the outer surface on the measurement result is overcome during the full-current live-line detection work of the MOA.

Description

technical field [0001] The invention relates to the technical field of lightning arresters, in particular to a device 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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