一起110 kV主变差动保护动作原因分析

Analysis of the Action Reason of a 110 kV Main Transformer Differential Protection

文章以某地区110 kV变电站发生的一起110 kV主变差动保护动作为例,对引起该事故的主要原因进行了全面分析,发现主要是由于整定错误而导致,结合此次事故所暴露的主要问题,提出了相应的改进建议。

In this paper, an example of a 110 kV main transformer differential protection in 110 kV substation in a certain area was taken as an example to analyze the main causes of the accident.It is found that the main cause is due to the setting error and the corresponding suggestions are put forward in combination with the main problems exposed in this accident.