对交流直流两用断路器部分短路试验解析

Discussion on Part of AC and DC Circuit Breaker under Short Circuit Test

为解决新版GB/T 10963.2-2020交直流两用断路器中各实验室人员对短路试验操作细节可能存在的困惑,分析了在短路情况下所进行的试验项目、试验电流大小及接线方式等。明确短路试验前的准备事项、短路试验电路图及试验程序、短路试后的验证项目。

In order to solve the new version 10963.2-2020 AC-DC dual purpose circuit breaker in the laboratory personnel on the short circuit test operation details may exist confusion.The test items,test current and connection mode under short circuit condition are analyzed.Make clear the preparation matters before short circuit test,circuit diagram and test procedure of short circuit test,and verification items after short circuit test.