三相笼型异步电动机的降压起动

Reduced Voltage Starting of Three-phase Cage Induction Motor

针对不同生产要求,三相笼型异步电动机在应用之中主要有直接起动、串联电阻降压起动、Y-Δ降压起动、自耦变压器降压起动等几种起动方法,并有各自的优缺点。提出了普遍使用的Y-Δ降压起动,在其使用过程中应该注意几个问题。

According to different production requirement, there are several starting methods of three-phase cage induction motor in the application including direct starting, reduced voltage starting of series resistance, Y- △reduced voltage starting, reduced voltage starting of autotransformer, etc. Each of them has respective advantages and disadvantages. This paper introduces the Y - △reduced voltage starting which is generally used and discusses some problems that should be paid attention to during its using process.