110kV备自投存在的运维问题及应对措施

The operation and maintenance problem of 1 lOkV backup self- switching equipment and its countermeasures

以110kV某站为例，对其110kV备自投装置存在的某些运行方式下备自投无法充电、备自投动作后合闸于故障母线时故障无法快速切除、开关位置取自操作箱TWJ（跳闸位置继电器）而引起备自投放电动作失败三方面的运维问题进行分析，并提出相应的应对措施。

Took a 110 kV substation for example, there were three operation and maintenance problems for 110 kV backup self - switching equipment, that backup self - switching equipment problem could not be charged under certain operating mode, failure could not be removed rapidly when backup self - switching equipment problem switch into the fault bus, backup self - switching equipment problem fails due to switch position fed from the relay at trip position in the operation box. The solutions were put forward accordingly, and useful reference was given to the design of 110 kV backup self- switching equipment problem and operation and maintenance.