Y-△降压启动电路典型故障分析

Star-shaped and Triangular-type Step-down Start Circuit Typical Fault Analysis

大功率鼠笼式异步电动机常采用降压启动,降压启动的方法有多种,Y-△降压启动是其中常用的一种,在此介绍一台采用Y-△降压启动的深井泵的2例典型故障,从不同的角度对故障加以分析和判断,并提出实际解决的方法和整改措施。

High power squirrel - cage induction motors used by step - down start, step - down to start a number of means, star - shaped and triangular - type step - down start is one kind commonly used, here the author describes two cases of the use of star - shaped and triangular - type on deep well pump step - down start typical fault, from a different perspective on the failure to analyzing and judge, and to propose practical solutions and rectification measures.