三相异步电动机断相运行及其热继电器保护探讨  

Discussion on Open-phase Running of a Three-phase Asynchronous Motor and Its Thermorelay Protection

作　　者：陈铁军[1] 

机构地区：[1]湘潭技师学院,湘潭411102

出　　处：《电气开关》2009年第4期71-74,共4页Electric Switchgear

摘　　要：通过理论分析和计算,推导出了三相异步电动机三种常见断相形式的电流变化关系,并以此为依据对双金属片式热继电器在三相异步电动机的断相运行中的保护作用给予评述。By theoretical analysis and calculation current change relations of three common open - phase of a three- phase asynehonous motor are derived and discusses protective action of bimetallic trip thermorelay in open-phase running of three-phase asynchronous motor according to its basis.

关 键 词：三相异步电动机 断相运行 热继电器 保护 

分 类 号：TM343[电气工程—电机]