in this paper, the main reason of bunch- drop accident of ceramic insulator in transmission line has been analyzed and found out, then some relevant countermeasures have been presented.
针对运行中瓷质绝缘子掉串事故进行分析,找出事故的主要原因,并提出相应的防范措施。
ceramic insulator is widely used in alternating and direct current transmission system. but there exist some problems when using ceramic insulator in direct current transmission system.