Induction motor response to voltage dips

This paper presents a study using the EMTP to investigate the dynamic response of induction motors to voltage dips. The machine response is related to the voltage dip magnitude and duration. Dips represented include single and multi phase dips as well as sequential dips due to re-closing operations. The survivability of the motor operation is assessed against typical induction machine protection settings. It is demonstrated that protection settings can be adjusted to improve the motor operation survivability of voltage dips without endangering the safety of the motor.