Electric Motors are mainly two types one is “AlterNet Current” (AC) and the other is “Direct Current” (DC) Motors. The fault may occur in each one of them.
AC Motors are used in the Air Compressor unit. Sometimes these Electric Motors are also giving trouble and total compressor unit stops, resulting in a plant shutdown.
Hence to avoid this, you have to take due care of your total Air Compressor unit along with Electric Motor.
This post will gain your information about faults occurring in Electric Motor. So, you can protect your Air Compressor unit from stopping to perform.
I will try to cover most of the faults so you can rectify them as early as possible and minimize your shutdown time of plant operations and Air Compressor.
So, here is the list of Fault Occur in Electric Motor and Its Rectification
FAULT: MOTOR CONNECTED BUT DOES NOT START
FAULT: MOTOR RUNS AND THEN STOPS
FAULT: MOTOR STALLS
FAULT: MOTOR DOES NOT COME UP TO SPEED
FAULT: MOTOR TAKES TOO LONG TO ACCELERATE
FAULT: MOTOR OVERHEATS WHILE RUNNING UNDER LOAD
FAULT: WRONG ROTATION
FAULT: MOTOR VIBRATES AFTER CONNECTIONS HAVE BEEN MADE
FAULT: UNBALANCED LINE CURRENT
FAULT: SCRAPING NOISE
FAULT: MAGNETIC NOISE
FAULT: MOTOR SPARKING AT SLIP-RING
Besides this information, you are suggested to read something more from below engineering books