摘要
本文介绍了低压电器通断能力试验中系统总阻抗的组成和短路电流的计算方法。在通断试验中,要使用能承受经常性短时负荷的变压器,为保证试验的出力,还要使低压线路的阻抗减小,合理的配置试验回路中的设备。
This article introduced the system total impedance composition and the computational method of short - circuit current in the low - voltage apparatus switching ability test. In switching ability test, we must use the transformer that can withstand the regular short - time load. In order to guarantee test striving, we also need configure test circuit equipment reasonably to make the low - voltage loop impedance reduction.
出处
《机床电器》
2005年第5期13-15,18,共4页
Machine Tool Electric Apparatus
关键词
通断试验
短路电流
系统阻抗
计算
switching test
short- circuit current
system impedance
computation