一起电站厂用电全停的原因分析和处理

Reason Analysis on One Auxiliary Power Outage & its Treatment

分析了变压器差动保护误动引起电站厂用电全停的原因,认为在采用新型数字式差动保护继电器情况下要特别注意被保护变压器的组别。

This paper analyzes the reason of auxiliary power outage resulted from incorrect actuation of transformer differential protec- tion.It is thought that the bank type of protected transformer should be paid attention when using new type digital differential protec- tion.