大容量高速限流开关的设计与试验研究  

Design and Test Study of Large Capacity High Speed Current Limit Switch

作　　者：李健[1] 朱峰[1] 

机构地区：[1]杭申控股集团杭州之江开关股份有限公司,浙江杭州311234

出　　处：《电工电气》2011年第12期48-50,共3页Electrotechnics Electric

摘　　要：针对现有保护设备难以满足大容量电力系统短路保护要求的问题,研制了一种基于爆炸活塞式高速开断器和灭弧熔断器的混合型限流保护装置,设计了额定640V/2500A的工程样机,并进行了高速开断器的分断试验和整机的限流试验。试验结果表明,该保护装置限流效果显著,全分断时间仅为2.5ms,大大提高了电力系统的安全性。Aiming at the problem that the existing protection equipment is difficult to meet large capacity power system short circuit protective requirements problem, this paper researched a kind of high speed break-off device based on explosive piston type and arc blow-out fuse mixed type, current limit protection device, designing rated voltage 640 V/2 500 A engineering sample machine. The break-off test and whole machine current limit test were carried out for high speed breaker. Test result shows that the protective device current limit effect is obvious and the total break-offtime is only 2.5 ms, which greatly raises safety of the power system.

关 键 词：短路保护 限流 大容量 

分 类 号：TM561[电气工程—电器]