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Topic: its possible to change dir in an AC motor (Read 1 time) previous topic - next topic

copachino

hi, yestarday i was wondering if its possible to change the spin of an AC common motor, for example if its run in CW change that for CCW without modifying the motor itself, maybe some kind of inverter??

Grumpy_Mike

Quote
its possible to change the spin of an AC common motor,

What sort of AC motor?
Normally this is not possible.

retrolefty


hi, yestarday i was wondering if its possible to change the spin of an AC common motor, for example if its run in CW change that for CCW without modifying the motor itself, maybe some kind of inverter??


Typical not unless the AC motor is designed for bidirectional service, for capacitor start motors this isusually done by selecting proper motor starting capacitor leads Vs field winding leads choice. So with proper relay selected connections wired up to a proper AC motor type it is possible.


http://i40.tinypic.com/vh6qo0.jpg

Lefty

copachino

i was wondering because some guys once put a fan motor for an elevator project(small project) and they change the spin dir with just a switch, but the motor was not designed to go in CCW...


shayrgob

Please correct me if I'm wrong but isn't it simply a matter of inversing polarity?

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