ac induction (I think) motor question

Discussion in 'General Electronics Chat' started by Anthony J Brock, Mar 1, 2016.

  1. Anthony J Brock

    Thread Starter New Member

    Oct 2, 2015
    11
    2
    Hey everyone sorry if this has been discussed beforehand, I did have a quick look. I have an ac motor (induction I think) I salvaged just wanted to know... If I rewind the copper winding will that help increase torque ? Sorry if it is a dumb question very new to this stuff with only basic knowledge
    I have attached a photo of the motor
     
  2. ISB123

    Well-Known Member

    May 21, 2014
    1,239
    527
    Gear it down, increase voltage. Don't play with windings since there is a high potential to mess it up. Larger the diameter of rotor the more torque it produces.
     
  3. Anthony J Brock

    Thread Starter New Member

    Oct 2, 2015
    11
    2
    Ok thanks do i increase voltage with transformer? I have a couple of microwave transformers right now it's running on mains so I assume that's 240v
     
  4. ISB123

    Well-Known Member

    May 21, 2014
    1,239
    527
    You probably won't be able to increase the voltage.You could maybe increase the voltage by 20% without damaging the motor. Try gearing it down.
     
  5. Anthony J Brock

    Thread Starter New Member

    Oct 2, 2015
    11
    2
    Ok cheers ill see what I can find in the way of gears. Just out of curiosity is it possible by rewinding
     
  6. crutschow

    Expert

    Mar 14, 2008
    13,019
    3,235
    Motors are normally wound for maximum torque and power.
    It's unlikely you could improve on that.
     
  7. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,552
    2,374
    That is a small simple shaded pole motor and the mass of iron in the motor will not allow much more current without saturation of the core.
    Max.
     
  8. Anthony J Brock

    Thread Starter New Member

    Oct 2, 2015
    11
    2
    Thankyou everyone for the advice.
     
  9. recklessrog

    Member

    May 23, 2013
    338
    102
    You say you have transformers from microwave ovens?? Please Please don't play around with these, They can supply in the region of 2 kV at very high current that will KILL YOU instantly if you come into contact with it.
    If you were to connect it to your motor you will fry it and possibly have a fire.
    You need proper training to work with high voltage equipment, learning by mistakes is not an option as usually the first one is FATAL.

    Please do take this warning very seriously.
     
  10. Anthony J Brock

    Thread Starter New Member

    Oct 2, 2015
    11
    2
    Yes I am aware of this thankyou for your concern I am always very careful and take every precaution. some have been rewound for different projects I'm new but I do understand the dangers of playing with electricity but thankyou for the reminder
     
    recklessrog likes this.
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