I just learned of a safety issue that may exist with medium voltage VFD driven motors used in Class 1, Division 2 classified areas.
In some configurations, the stored electrical potential energy between the motor shaft and grounded surfaces may exceed the minimum ignition energy for the...
A suggestion to the lady and gentlemen of the this forum:
To eliminate a great deal of second-ary (excuse the pun)guessing, how about presenting queries and problems with the following data (in the relevent order) in mind:
1) Supply Features.
2) Motor Parameters.
3) Starting Method.
4)...
I am admitted technocrat... one, who upon learning that 4,378,573 people were married last year, asks the question "why is it not an even number!" In other words, I'm a detail nut... requiring factual explanation of electrical failures.
Now I would like to respond to the 3 M's...
