具有过电压保护功能的欠电压脱扣器  

Undervoltage Tripper with Overvoltage Protection Function

作　　者：迟长春[1] 任晓明[1] 武一[2] 

机构地区：[1]上海电机学院电气学院,上海200240 [2]河北工业大学信息工程学院,天津300130

出　　处：《上海电机学院学报》2012年第5期287-289,共3页Journal of Shanghai Dianji University

基　　金：上海市自然科学基金资助项目资助(12ZR1411700);上海电机学院教师科研启动经费项目资助(11C403)

摘　　要：针对因电网质量及制造工艺等因素造成断路器欠电压脱扣器故障率高、难以解决的问题,研究设计了一种具有自适应自复式过电压保护功能的欠电压脱扣器,其能自动适应电源电压的变化,吸收过电压,钳制脱扣器线圈电压,使欠电压脱扣器的工作范围无高压死区,提高了断路器工作的可靠性。Due to the factors such as electrical network quality and manufacture procedure, the failure rate of circuit-breaker＇s undervoltage tripper is high and is always difficult to solve. This paper proposes an adaptive undervoltage tripper with overvoltage protection function. It can adapt the supply voltage change, absorb overvoltage, and block undervoltage tripper＇s coil voltage.That causes the operating region of the undervoltage tripper without high voltage dead area and improves circuit-breaker reliability.

关 键 词：欠电压脱扣器 自适应 高压死区 可靠性 

分 类 号：TM561[电气工程—电器]