500kV HGIS联锁回路改进的探讨  

Improvement about interlock circuit of 500kV HGIS

作　　者：张迎峰[1] 

机构地区：[1]广东水利电力职业技术学院,广东广州510635

出　　处：《电力系统保护与控制》2009年第24期194-195,200,共3页Power System Protection and Control

摘　　要：500kV组合式高压电器(HGIS)内所有开关、刀闸和地刀的控制回路均集中在就地控制柜内,在某些情况下需进行解锁操作时,则就地控制柜内所有开关、刀闸和地刀的联锁条件均被屏蔽。如果开关两侧线路或母线带有电压,此时操作人员思想麻痹很有可能发生带电合地刀等恶性误操作事故。通过在刀闸、地刀联锁回路中增加检测线路或母线无压触点来解决该问题,即从根本上解决发生恶性误操作的可能性。All the control circuits of circuit breaker, disconnect switches and earthing swithces in 500 kV hybrid gas insulated switchgear locate in the local control panel. In some cases, it needs unlock the interlock circuit to operate, in this case, the controlable conditions are all shielded. If the operator operate carelessly when the lines or bus beside the circuit are charged, it is very possible to cause closing the earthing switch charted, and it is a sort of malignant misoperation accident. This paper adds the no-voltage contact of lines and bus in the circuit breaker, disconnect switch and earthing switch＇s interlock circuit to solve the misoperation thoroughly.

关 键 词：HGIS 联锁回路 误操作 解锁操作 

分 类 号：TM51[电气工程—电器]