无负载时变压器差动保护电流回路正确性检查方法

Correctness Checking Method for Transformer Differential Protection Current Circuit With out Load

新安装的变压器必须带负荷检查差动保护电流回路接线正确后才能正式投运。针对现场没有足够用电负荷的情况,提出2种变压器简单有效的一次回路通流方法,以保证变压器一次性投运成功。

The newly installed transformer must be put into operation after checking the correct wiring of differential protection current circuit with load.In view of the situation that there is not enough power load on site,two simple and effective primary circuit current passing methods of transformer are proposed to ensure the successful operation of transformer at one time.