抄録
This paper established a condition monitoring and diagnosis method of motor and rotating machine which be driven by the motor by analyzing the driving current signal of three aspect induction motors multiply, and systematized the method. With the method that abnormal states such as broken rotor bar, rotor eccentricity, slot fault, mechanical unbalance, mechanical misalignment, bearing fault, fluid abnormal, electric abnormal, etc. can be distinguished. And moreover TAKADA-Motor Current Multiplex Analysis and diagnosis system T-MCMA was developed based on the proposed method. Due to current signal can be measured in an electric indoor electric board, so not to mention general rotating machines, this system is most suitable for state monitoring and diagnosis of machines which be installed in a liquid, and the high temperature environment, the high humidity environment or be installed in poison, dynamite, the radiation area.
