Update: After many discussions with their shop foreman & engineering team the root of the problem has been identified as contamination. The motor was very dirty and maintenance happens very seldom as the motor needs to run almost constantly and downtime is very costly. This information was...
I am looking for help/advice in identifying what the fault may be in the following scenario:
A large wound rotor induction motor is experiencing flash overs during start up. The company that winds and constructs the motor has stated that it has passed all insulation and safety testing, and are...