Vintage desk fan

Discussion in 'General Electronics Chat' started by Stevieh, Aug 26, 2014.

  1. Stevieh

    Thread Starter New Member

    Aug 26, 2014
    1
    0
    I have a vintage desk fan which runs very slowly or not at all.
    It is a 4 pole induction motor 220-240 volt 50 cycle about 200 watts.
    The windings have been check and are OK and the rotor and rotor bushes are fine.
    Bit stuck at the moment.
    However what I did try and it works so far is to put a 2μf capacitor into one of the windings, it seems to work perfectly.
    Is OK to leave it running like this, I have had it running for days?
    I realise that I need to fit a bleed resistor to the capacitor as I know it needs to be discharged, I use a screwdriver at the moment, any idea what value that should be?
    Any help be greatly appreciated
     
  2. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,548
    2,373
    You don't really need a discharge resistor on a split phase motor.
    What is the reason for looking to fit one?
    If it has more that one winding then it is not a shaded pole motor and must have had a cap previously?
    Max.
     
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