摘要
针对现有地区电网的接线方式和保护配置,比较全面地分析了110kV双电源变电站、线路-变压器组变电站、有电源上网的变电站在不同运行方式及故障方式下的运行可靠性,对运行实践中出现的问题,提出了采用备用电源自动投入装置、自动重合闸装置及合理设定保护定值等方法来解决的方案,该方案在惠州电网变电站运行的实践中得到验证。
In the light of the existing connection methods and protection configuration of regional power network, this paper analyzes the operation reliability of substations with duplicate 220 kV supply, line-transformer unit substations and substations with power supply from the receiving-end system in 110 kV power network under different operation and failure modes. Measures of using automatic stand-by power switching devices and auto-reclosing devices with protection values reasonably set are proposed to solve the problems in operation, the efficacy of which has been validated in the operation of substations in Huizhou power network.
出处
《广东电力》
2005年第5期17-20,共4页
Guangdong Electric Power
关键词
地区电网
运行可靠性
备用电源自动投入装置
自动重合闸装置
regional power network
operation reliability
automatic stand-by power switching device
auto-reclosing device
