Dear All,
Thanks for the advice.
I had a dd drives expert look at the field variation and he suggests that there is something not so happy with the field, and needs to come in and look at it.
I will feed back within a month of his investigation.
Good Day Gents,
1. Field Regulation: We have doing active field current control, so there is regulation, or should be.
The field pac on the Siemens 6RA70 drive, provides the field regulation.
2. Blowers to keep teh field cool: Yes we have blowers cooling all our motors, and they are working...
Greetings, I am also pretty new in the motor field.
at our foil rolling mills, we have 3 motors in tandem at our recoiler and 3 at the decoiler.
motor specs: 70 kw, V=141V, Ia=568A, Vf=63/15V, If=15.2/4A, w=400/1200rpm.
the front motor is tied to one drive, while the back 2 motors are tied to...
