Where is the north and south pole in induction motor?

Discussion in 'General Electronics Chat' started by Michael George, Dec 16, 2015.

  1. Michael George

    Thread Starter Member

    Feb 8, 2015
    52
    2
    To design a permanent split capacitor motor ( 2 poles ) , We should construct the windings as the figure below:

    1 - Copy.png

    What if I need design a 4-pole motor... Where should be north and south poles for the following picture ??
    2.png
     
    RRITESH KAKKAR likes this.
  2. RRITESH KAKKAR

    Senior Member

    Jun 29, 2010
    2,831
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    are you building motor?
     
  3. Michael George

    Thread Starter Member

    Feb 8, 2015
    52
    2
    @RRITESH KAKKAR
    Yes, I have the core of an old motor and I need to re-wind it.
     
    RRITESH KAKKAR likes this.
  4. MaxHeadRoom

    Expert

    Jul 18, 2013
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    This may help.
    Max.
     
  5. shortbus

    AAC Fanatic!

    Sep 30, 2009
    4,004
    1,525
    Think you not understanding how an AC motor works. The images are only showing a N and S pole for one half of the AC cycle. The the poles reverse themselves on each half of the cycle, there is no permanent N or S pole.
     
  6. MaxHeadRoom

    Expert

    Jul 18, 2013
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    I think the aim of the diagram is to show the Relative winding polarity when being wound, not the alternating.
    The pdf I included also shows the relative polarity from one pole to the other.
    Max.
     
    Michael George likes this.
  7. Michael George

    Thread Starter Member

    Feb 8, 2015
    52
    2
    @MaxHeadRoom
    Thank you very much for your useful answer. I appreciate it. I searched many many websites but I did not find anything useful. It seems that you scanned your own book. You're wonderful :)
     
  8. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,510
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    Your welcome.
    It is looked on as the 'Bible' of Electric motor wiring by R. Rosenberg Copyright 1946 and still very valid today.
    Max.
     
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