Magnatizing Current Of Motor
Magnatizing Current Of Motor
(OP)
I recently had some experiance with Eurotherm / Parker 690 VSD drives. To run in Vector control it required a auto tune. But the autotune had to be selected to perform this in stationary mode due to the load. If autotune in stationary mode the drive required the magnatizing current from the manufacturer.
Basically my question, is there a way to calculate this from the name plate if it isn't stamped on the plate?
Manufacturers why do you not put this information on?
Basically my question, is there a way to calculate this from the name plate if it isn't stamped on the plate?
Manufacturers why do you not put this information on?





RE: Magnatizing Current Of Motor
All OEM's will have mentioned the no-load current in their test certificates. So, check the TC.
RE: Magnatizing Current Of Motor
I would be cautious about taking the motor manufacturers data in case the motor has been re-wound in its lifetime. This, I would expect, could influence the magnetising current the motor manufacturer may state, if they state at all.
RE: Magnatizing Current Of Motor
Ozmosis i think it does measure the magnetising current, but the drive didn't like autotune in the stationary mode. It wasn't until i put the mag current setpoint in from another drive on an identical motor on the other plant that it would run correctly.