摘要
介绍了10 kV馈电线路三段式过电流保护的功能特点,分析了馈线电流速断保护误动作的原因,是由配电变压器励磁涌流所引起,提出了加入保护延时防止误动作的措施。
An introduction was made on the functional characteristics of three-stage over current protection for 10kV feeder line. The results of analysis demonstrate that misoperation of feeder current quick break protection is caused by transformer inrush current. Additional time delay protection is suggested to prevent misoperation.
出处
《广西水利水电》
2014年第3期54-55,共2页
Guangxi Water Resources & Hydropower Engineering
关键词
电流速断保护
保护误动
保护延时
10kV馈电线路
Current quick break protection
protection misoperation
protection delay
10kV feeder line
