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Automatic switching connection device for measuring 220kV zinc oxide arrester leakage current without disconnecting lead

A leakage current and automatic conversion technology, applied in the direction of measuring device, measuring electrical variable, measuring device casing, etc., can solve the problems of low work efficiency, personal electric shock, etc., and achieve the effect of low cost, good applicability and convenient operation.

Inactive Publication Date: 2018-11-23
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the existing technology, the replacement of the test line during the test process needs to be done manually, and the work efficiency is low. Once the tester cooperates with the operation error (for example, the high voltage is not turned off), it will cause personal electric shock, and there is a certain safety risk.

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  • Automatic switching connection device for measuring 220kV zinc oxide arrester leakage current without disconnecting lead
  • Automatic switching connection device for measuring 220kV zinc oxide arrester leakage current without disconnecting lead
  • Automatic switching connection device for measuring 220kV zinc oxide arrester leakage current without disconnecting lead

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Embodiment Construction

[0031] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

[0033] Such as Figure...

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PUM

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Abstract

The invention discloses an automatic switching connection device for measuring 220kV zinc oxide arrester leakage current without disconnecting the lead, and relates to the technical field of electrical engineering. The automatic switching connection device comprises a gating circuit and a measuring circuit. The gating circuit comprises first to second relays KM1-KM2, a switch K0, first to second buttons AN1-AN2 and a DC power supply DC1. The first to second relays KM1-KM2 and the first to second buttons AN1-AN2 form first to second gating branches which are identical in structure. The first relay KM1 and the first button AN1 of the first gating branch are connected in series and then connected in series with the switch K0 and the DC power supply DC1. Convenient use, high test efficiency, high safety coefficient and saving labor cost can be realized through the electronic control technology.

Description

technical field [0001] The invention relates to the field of electric technology, in particular to an automatic switching wiring device for measuring the leakage current of a 220kV zinc oxide arrester without removing the lead wire. Background technique [0002] In the existing technology, the replacement of the test line during the test process needs to be done manually, and the work efficiency is low. Once the test personnel make mistakes in cooperation (such as failure to turn off the high voltage), it will cause personal electric shock, and there is a certain safety risk. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an automatic conversion wiring device for measuring the leakage current of a 220kV zinc oxide arrester without removing the lead wires. Through electronic control and other technologies, it realizes convenient use, high test efficiency, high safety factor, and saves labor costs. . [0004] In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02G01R1/04G01R19/00G01R1/30
CPCG01R1/04G01R1/30G01R19/0092G01R31/50
Inventor 胡月琰沈荣顺刘洁徐辉侯向宏邵洪林刘杨宋桂贤赵俊蕾王朝阳季鹏程
Owner STATE GRID CORP OF CHINA