自能式SF_6断路器压力特性理论计算与试验研究  

Puffer characteristic calculation and test of self-extinguishing SF_6 circuit breaker

作　　者：林莘[1] 刘克彬[1] 狄谦[1] 

机构地区：[1]沈阳工业大学电气工程学院,辽宁沈阳110023

出　　处：《中国电力》2007年第11期57-61,共5页Electric Power

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.

关 键 词：自能式SF6断路器 灭弧室 压力特性 

分 类 号：TM561[电气工程—电器]