摘要
合闸电阻是超高压线路上用于限制空载合闸和重合闸过电压的一种有效方法,但在多次合闸操作过程中,合闸电阻投入期间电流所产生的热量会使电阻片温度升高,极端情况下还会造成电阻片损坏甚至爆炸。本文针对550k V断路器合闸电阻的热容量试验方式、接线回路等方面进行分析,为550k V断路器合闸电阻的选择及使用提供一些参考。
Closing resistor is a kind of effective method to limit the overvoltage of the no-load closing and reelosing in super high voltage transmission line, but in the process of multiple switching operation, the current generated heat during the closing resistor input will increase resistance temperature, in extreme eases, it will cause electrical resistance chip damage or even explosion. This paper analyzed the heat capacity test method, wiring circuit for 550kV circuit breaker closing resistors, providing reference for the selection and application of 550kV circuit breaker closing resistors.
出处
《河南科技》
2015年第4期120-122,共3页
Henan Science and Technology
关键词
合闸电阻
电阻热容量
接入时间
试验替代法
closing resistance
heat resistance capacity
access time
test replacement method
