35kV开关手车故障导致主变失电的原因分析

Analysis of Causes for Power Failure of Main Transformer Due to a 35kV Switch Handcart Fauilure

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.