Causes and Remedies

Causes Remedies
a) Overload
b) Fan blades may clogged with dirt and improper ventilation to motor.
c) Motor may have one phase open
a) Reduce load / overload protection to be given.
b) Ensure the Cleaning of fan and continuous circulation of air over the motor for proper cooling.
c) Ensure that all leads are well connected and 3 phases supply is available.