摘要
某变电站35kV开关手车故障,造成运行主变高、中后备动作,跳开主变三侧开关。通过现场检查及告警信息,对开关手车故障导致主变失电的原因进行了分析,并提出了针对性的建议,以保证系统设备的安全运行。
When a 35 kV switch handcart fails in a substation,it causes the action of transformer backup protection.Through field inspection and alarm information,this paper analyzes the causes of power failure of the main transformer caused by the failure of switch handcart,and puts forward specific suggestions to ensure the safe operation of system equipment.
作者
吴耀东
WU Yaodong(State Grid Zhenjiang Power Supply Company,Zhenjiang 212001,China)
出处
《电工技术》
2018年第23期87-87,89,共2页
Electric Engineering
关键词
开关手车
变压器
后备保护
保护整定
switch handcart
transformer
backup protection
protection setting
