On Dec 3, 7:16 pm, "Ralph Mowery" wrote:
"---MIKE---" wrote in message
...
You can't change the speed of an AC motor. The speed is governed by the
60 cycle current.
---MIKE---In the White Mountains of New Hampshire
(44° 15' N - Elevation 1580')
While the speed is determined by the frequency , it is easy to change the
speed. Just use an inverter such as:
http://www.emservicenter.com/Yaskawa.cfm
Where I work we have 100's of them. They range from fractional horse power
to over 100 HP motors.
For small motors , it may cost as much or more than the motor.
For a table fan I use an x10 controler and do it remotely, I dont know
what type of motor the fan is but X10 might have something, but 1hp
draws alot of current