What are the faults occur in induction motor?

What are the faults occur in induction motor?

The main types of external faults experienced by an induction motor are over-loading, single phasing, unbalanced supply voltage, locked rotor, phase reversal, ground faults, and under/over voltage.

What causes motor failure?

Electric Motor failure occurs due to overheating, phase unbalance, voltage unbalance, single-phasing, surge voltages, poor ventilation, lack of lubrication, overloads, over cycling, excessive moisture, improper belt tension, misalignment and vibration, loose connections, pests, etc.

What are the faults in induction motor?

What are the mechanical faults of induction motor?

Mechanical Faults: Mechanical faults are such types of faults which are generally occurred in internal housing of three phase induction motor. These faults are further sub dived into three types such as, Broken Rotor Bar Fault: The squirrel cage induction motor consists of rotor bars and shorted end ring.

What are the types of faults in motor windings?

These faults include phase to phase faults, earth faults, and inter turn faults. Faults in motor windings are generally occur due to failure of insulation which causes due to the excess heating in the windings of the machine. Phase to phase faults are rare because enough insulation is provided between the phases.

What is the function of bearings in three phase induction motor?

Bearing Fault: In three phase induction motor two sets of bearings are installed inside of motor housing, for the supporting the motor shaft. The main purposes of these bearings are, to rotate the motor shaft freely and reduce the fiction.

What are the types of faults in a motor stator?

Electrically, here are examples of all the faults that occur in a motor stator: The main types of external faults are over loading, single phasing, unbalanced supply voltage, locked rotor, phase reversal, ground fault, under voltage and over voltage.