Arrester impact characteristics testing device and method

Abstract

The invention discloses an arrester impact characteristic testing device and method. The arrester impact characteristic testing method includes steps of boosting a working frequency power supply through a transformer, charging capacitors by a high-voltage silicon stack and a charging resistor in parallel connection, discharging from sphere gaps, parallelly connecting the capacitors to generate high voltage and high current and applying to a test product. The arrester impact characteristic testing device and method solves the problems of measuring of lightning and operating impact characteristic of an integral arrester and current distribution of multiple arresters in parallel connection, solves the problem that a same testing device can generate four kinds of standard wave forms including lightning impact voltage waves, operating impact voltage waves, lightning impact current waves and operating impact current waves, is used for measuring and storing various impact voltage and current wave parameters and provides powerful testing data and guarantee for reliable operation of the arrester.

Description

Technical field [0001] The invention relates to a lightning arrester test, in particular to a lightning arrester impact characteristic test device and a test method. Background technique [0002] Lightning arrester is an important protective electrical appliance of power system, and it has been widely used in power system. The impact characteristic of arrester determines the protection level of arrester. The measurement and research of arrester's impact characteristic parameters are very important for the coordination and protection of arrester and power system parameters. The test of the surge characteristics of the arrester is currently measured on the proportional unit of the surge arrester, and multiplied by the proportional coefficient to get the surge characteristics of the entire surge arrester. The accuracy of measuring the surge characteristics of the surge arrester is not high, and the test of the surge voltage and current characteristics is required Multiple sets of te...

AI Technical Summary

Problems solved by technology

The test of the surge characteristic of the arrester is currently measured on the proportional unit of the arrester, and multiplied by the proportional coefficient to obtain the impulse characteristic of the entire

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