自能式SF_6断路器改变动触杆排气孔位置对气压特性的影响  

The Influence that the hole changed of moving contacts Self—extinguishing Type GSS Circuit Breaker for Puffer Characteristic

作　　者：王程[1] 林莘[1] 

机构地区：[1]沈阳工业大学电气工程学院,110023

出　　处：《华通技术》2002年第3期16-19,48,共5页

摘　　要：自能式SF_6断路器的灭弧室动触杆排气孔位置的改变对开断性能的影响很大,灭弧室动触杆排气孔位置并不是越靠近喷口越好,其压力特性是有一定的脉动和周期性。以热力学第一定律和流体动力学为基本原理,建立起灭弧室内气压特性的数学模型,对改变灭弧室动触杆排气孔位置的自能式SF_6断路器的气压特性进行了计算。并分析了自能式SF_6断路器的开断性能。The hole changed of the self extinguishing type gas circuit breaker's gas chamber has much effect on interruption ability. It isn;t hetter near to the spout.The pressure characteristics have definite pulse and periodicity.This first law of thermodynamics and the law of hydrokinetics are based by this paper,the model of gas chamber's gas puffer characteristics has been built up.The interrup- tion ability of a self extinguish type gas circuit breaker has been investigated while changing the hole's position.Characteristic of inter- rupting analyzed.

关 键 词：自能式SF6断路器 动触杆排气孔 气压特性 六氟化硫断路器 灭弧室 

分 类 号：TM561.3[电气工程—电器]