摘要
以252kV自能式SF6断路器为例,以热力学第一定律和流体动力学为基本原理,建立灭弧室内气体压力特性的数学模型,对其进行数值计算,得到灭弧室内气体压力的特性曲线。对断路器灭弧室压力特性进行试验测试,对试验结果和计算结果进行比较,说明理论计算结果的正确性。
Based on the first law of thermodynamics and the law of hydrokinetics, the mathematic model of the pressure characteristic was established for the 252 kV self-extinguishing SF6 circuit breaker, and the pressure characteristic curve of the arc-extinguishing chamber can be obtained through computation. The pressure characteristic can be achieved by the test. The comparison of testing with the computation indicates the accuracy of theoretical calculation result.
出处
《中国电力》
CSCD
北大核心
2007年第11期57-61,共5页
Electric Power
关键词
自能式SF6断路器
灭弧室
压力特性
self-extinguishing SF6 circuit breaker
gas chamber
pressure feature
