Why do motors fail?

Why do motors fail? Modern industrial processes rely so heavily on motors that it can be catastrophic if they were to fail. Not only are motors difficult and expensive to replace, but every second they are out of action can cost a company substantially in lost productivity. In this video Peter Wilson of Covelec - an ABB Authorised Value Provider - explains the three most common reasons why motors fail, and how motor failure can be prevented.

[@rockerpat1085]

Didn't say anything about Voltages being wrong!!! Bad wiring can cause an over draw on the circuit causing too much resistance causing the motor to run on too low voltage causing more heat causing an overheating situation causing the motor to burn up!!! All he talks about is mechanical failure!!! Not electrical failure!!!

[@Chucker973]

Low voltage also.

[@nobobibi7235]

What is the name of the white board animation software you use to make this video

[@2jpu524]

Are these generally 3-phase brushless motors?

[@krakenwoodfloorservicemcma5975]

Two-phase mo mos

[@2jpu524]

@@krakenwoodfloorservicemcma5975 I understand that there are 2-phases or 3-phases for AC power distribution, but there is also 3-phase DC, where you use PWM, and selectively drive two of the coils at a time to electrically commutate the motor, rather than use brushes. I am curious to what extent that electronic commutation is done with AC motors, rather than use brushes. Working with motors myself, the MTBF of a brush motor is about an order of magnitude shorter.. I am less familiar with AC motors, but have worked a lot with BLDC and stepper motors.

[@krakenwoodfloorservicemcma5975]

AC locomotive traction motors work with three phase square wave that is controlled from phase modulation.. goes in as DC, comes out AC pulsed. Very rugged motors, generally fail from insulation breakdown. But they go a million miles often.

[@Buciasda33]

ABB Noobs.
Motors usually fail during start-up.
If you're trying to start-up a locked motor or machine without proper knowledge and protection you'll destroy the motor.

[@Engineer9736]

Which idiot decided that it’s a good idea to hose down electric motors LOL

[@e30junk58]

Richard van Pukkem sanitation