摘要
分析了 GIS配电装置内部短路故障形式 ,从而提出了串外电流互感器 (TA)配置的形式以及用于 GIS串外 TA配置的 T区保护装置和线末保护。还介绍了适应上述接线的 LFP— 92 4微机型T区保护和线末保护原理 ,其可以自动转换的功能 ,给运行带来极大的方便。
The various internal faults in GIS are introduced and analyzed in this paper, and then that the current transformer for line relay should be set at outgoing line side of GIS is suggested. The requirements for T-zone protection and line-end relay are mentioned. For this scheme, the microprocessor based relay LFP-924 and its flexibility for possible operation modes are described.
出处
《电力系统自动化》
EI
CSCD
北大核心
2001年第10期39-41,共3页
Automation of Electric Power Systems
关键词
全封闭组合电器
电流互感器
GIS
T区保护装置
气体绝缘
Electric fault currents
Electric instrument transformers
Geographic information systems
Microprocessor chips
Relay protection
