Analysis of the relationship between high voltage motor vibration and electric power quality

JI Jie
(Shanxi Department of the WEPC, Taiyuan 030001, China)

Abstract: In order to locate the reason of abnormal motor vibration when the motor is runing, the electric power quality analysis was investigated. After an academic explanation and analysis of actual testing data, the primary conclusion that abnormal motor vibration was caused by the unbalanced incoming current was established. Lastly through simple calculation and comparison, the experimental results show that the unbalanced electric source voltage is one of the direct factor leading the abnormal motor vibration.
Key words: motor; vibration; incoming current; voltage unbalance