摘要
阐述了内桥接线方式的110 kV变电所的不同运行方式,以及备自投装置动作逻辑。同时对变换运行方式后不同故障下的备自投动作情况进行了分析。针对110 kVⅡ段母线故障时,可能引起设备的受损程度加重扩大事故,提出了通过合理的系统方式及备自投方式调整的方案,并通过对调整后各类故障时对电网影响进行分析,证明改进后的方案不仅可以避免重复向故障点送电故障扩大的危险,也可以最大可能地保证供电的可靠性。
The different operation mode in 110 kV inner-bridge-connection substation and the operating logic of the automatic switching-on device of reserve power source are discussed. Meanwhile, the device operating process under different failures is analyzed after changing the operation mode. When the failure happens in 110 kV Ⅱ main bus, it will be expanded and thus bring more damage to the equipments. So, reasonable system mode and the promoted project on the switch-on device are put forward. By analyzing the device operating process under the failures, the promoted project is proved to be satisfied and the failure is avoided to be expanded.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2010年第9期134-135,150,共3页
Power System Protection and Control
关键词
内桥接线
备用电源
运行方式
inner bridge connection： reserve power： operation mode
