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Slowing Speed of Air Fan

Discussion in 'Electronic Basics' started by Llyal 2000, Dec 21, 2003.

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  1. Llyal 2000

    Llyal 2000 Guest

    I would like to slow the speed of a typical AC fan. The slow speed of
    a typical 3 or 4-speed fan is not slow enough. Can i simply insert a
    appropriately rated resitor in series between the power source and the
    motor? Or do i need to re-wind the motors coils?
  2. Ross Mac

    Ross Mac Guest

    A dimmer switch might work....though it might overheat the motor a bit if
    you slow it down too much.....
  3. I guess you could introduce another small choke into the cct for the final
    low speed. Or for that matter in series with it all for a general speed
    reduction. Once you get down to low speeds it's pretty much trial and
    error. With ceiling fans I have had sucess with fitting longer blades
    (increased load) to get a better setting at the low speeds.
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