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Where to buy small eddy current brake?

Discussion in 'Electronic Repair' started by John Doe, Aug 30, 2007.

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  1. John Doe

    John Doe Guest

    I'm looking for an online store (USA) to buy either a small eddy
    current brake or a small hysteresis current brake.

  2. Guest

    If you only need one, try some second hand shops for an old recodr
    player. One with a synchronous motor.

    If you apply DC to the coil it will act as an eddy current brake. I
    don't know just how much current you'll need but you will need ALOT
    less than 120 volts to do it. That much DC voltage will cook it.

  3. Chris Jones

    Chris Jones Guest

    Actually pretty much any induction motor can work as a brake, if you put DC
    through the windings. Of course all of the mechanical power (and the
    electrical power from the DC supply) will end up as heat inside the motor,
    so be careful not to cook it. Most of the mechanical power will end up
    heating the rotor. If you are getting rid of a lot of power and the RPMs
    are too low for the motor's own fan to be effective then consider adding a
    blower to force air through the motor.

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