2phase induction motor?

Discussion in 'General Electronics Chat' started by strantor, Aug 15, 2011.

  1. strantor

    Thread Starter AAC Fanatic!

    Oct 3, 2010
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    from wikipedia:
    I think my understanding of AC has just been shaken. if you put 2 phases, no matter how far out of phase, through a motor, wouldn't it still be single phase?
     
  2. GetDeviceInfo

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    Jun 7, 2009
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    Steppers, BLDC, and others that have phase seperated windings can be described as 2 phase.
     
  3. #12

    Expert

    Nov 30, 2010
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    2 phase doesn't happen on the U.S. power grid unless you look at American center tapped 240 and have a sense of humor. That's the extent of my knowledge because I don't play with steppers or DC motors. My job is just straight 208/230 (rarely 440V) single phase and 3 phase. I suppose you could wind a motor to use each of the 120V phases to the center tap, seperately, and call it 2 phase, but I have enough trouble communicating with parts clerks without getting into that kind of conversation!

    For every day fixit work in the U.S. there is no 2 phase.
     
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  4. someonesdad

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    Ha! I remember reading about this in a book years ago. Why can't I remember what I had for lunch yesterday?
     
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  5. GetDeviceInfo

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    that wasn't a very good answer I gave considering you where asking about induction motors.

    could someone be calling a split phase 2 phase?
     
  6. strantor

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    Thats what I thought when I read your answer, but I gave you the benefit of the doubt and read some more about BLDC and aparently there is such thing as a BLDC induction motor.
     
  7. shortbus

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  8. strantor

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    hey thats a real good writeup. I bookmarked it; looks like they have lots of good info on other stuff also.
     
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