We presently have a 200 Hp ,460 volt motor connected in wye which is provided power from a SquareD VFD controller.We typically always bring motor leads together and connect them to ground but Square D has some concerns that this will cause problems with their VFD drive. Is this reasonable to...
On a 600 volt motor control centers, I have noticed that manufacturers offer both tin plated and silver plated copper bus for power bus connections. At a 1,200 amp rating, which type of connection is preferred or does it make any difference
I have an application where I am tapping off isolated phase bus(13.8 kV) at the generator terminals with 15 kV cable to provide power to a step down power transformer(645 KVA 13,800/400 V). At this tap location, we have calculated a fault current of 83.7 kA symmetrical. I have been unable to...
