GIS on-site voltage withstand test breakdown point locating method and GIS on-site voltage withstand test breakdown point locating system

Abstract

The invention relates to a GIS on-site voltage withstand test breakdown point locating method and a GIS on-site voltage withstand test breakdown point locating system. The GIS on-site voltage withstand test breakdown point locating method is characterized in that four audio sensors are disposed on one side of a tested device, and three audio sensors share one line, and the other audio sensor does not share the line with the above mentioned three audio sensors; the signals generated by the four audio sensors are acquired, and the signal generating time delays of the three groups of audio sensors are acquired; the signal generating time delays of the three groups of audio sensors satisfy linear independence; the signal generating time delays of the three groups of audio sensors are substituted into three locating equations, and a position of a breakdown point is acquired by solving a locating equation group constituted by three locating equations. The four audio sensors are used for the locating of the breakdown point, and therefore the locating is accurate, and the efficiency is high. The system is realized based on the method, and therefore the application of the method is facilitated.

Description

technical field [0001] The present disclosure relates to the field of GIS field, and in particular, relates to a method and system for locating a breakdown point of a GIS field pressure test. Background technique [0002] Gas Insulated Switchgear (GIS) is the key equipment of the power grid. Due to its compact size and high reliability, it has been widely used in the field in recent years. GIS often needs to be subpackaged and transported separately when leaving the factory, and assembled on site. This puts forward higher requirements for its field test. The on-site routine test of GIS during the withstand voltage test, whether it is a power frequency withstand voltage test or an impact withstand voltage test, is a must-do test for GIS on site. [0003] Once the GIS breaks down in the on-site withstand voltage test, various signals such as sound and electromagnetic will be generated. Since the scale of the on-site GIS is relatively large, it is difficult to find the breakd...

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, this disclosure proposes to use four audio sensors to locate the breakdown point, which has the advantages of accurate positioning and high efficiency, and avoids the shortcomings of the existing method, which has a large number of sensors and low on-site implementation efficiency

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