mtnelectrical
Senior Member
- Location
- Essex, New Jersey
Would a 220 volts 3 phase delta motor work on a 208 v 3 ph wye system?
The OP is in New Jersey so not likely a 50Hz motor.If it is a 50 Hz rated motor, problems you will have do not have anything to do with wye vs delta but rather the V/F design of the motor.
They never import anything there?The OP is in New Jersey so not likely a 50Hz motor.
I'm sure they can. I was commenting on the probability rather that the possibility.They never import anything there?
Buying a 50 Hz motor may be harder to do without special ordering, but a motor already part of some equipment might be more likely, especially if buying used equipment. New equipment hopefully someone was smart enough to order what was needed for where it will be installed.
I don't know what the motor ratings are but, if not very big, it might be simpler and cheaper just to swap the motors for 60Hz rated units.Do you intend to somehow convert the supply to 50 Hz? It will run faster than designed if supplied with 60 Hz. V/F ratio if run at 480V 60 Hz is about same but will at least need to use mechanical reduction (gear/pulleys) to get same speed on the driven load.
If you opt for 480 volts, make sure every component is good for it, not just the motor.... 480V 60Hz is about same ...
Absolutely. Control transformers might be fine also, but connected controls will still be at a higher voltage than originally intended as well.If you opt for 480 volts, make sure every component is good for it, not just the motor.
You don't want a flashover in the control cabinet because, for example, the socket the phase-loss-protection relay is plugged into has a dielectric strength of only 300 volts.
Do you intend to somehow convert the supply to 50 Hz? ...
I don't know what the motor ratings are but, if not very big, it might be simpler and cheaper just to swap the motors for 60Hz rated units.