1000MW机组高厂变低压侧相电压异常原因分析

Analysis and Solutions to Abnormal Phase Voltage on Auxiliary Transformer for 1 000 MW Unit

分析了某电厂1 000 MW机组主变冲击试验过程中,高厂变低压侧相电压出现异常的原因,并提出解决方法,实施后问题得到解决。

The phase voltage is abnormal on a branch of auxiliary transformer,during the impulse test of 1 000 MW unit main transformer.Through theoretical analysis,it proposes solutions,and the problem is solved after actual implementation.