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Motor in a power tool

  1. Aug 7, 2017 #1
    Hi i recently completed my mechanical engineering and was interested in studying how power tools work! when i did some survey i came to know that they work on the basis of universal motor usually. So now the question rises whether it is a 2 pole or a 4 pole? what will happen if its is 2 pole and what will if it is a 4 pole? can any one help me in giving answer oriented to application(power tool)
    Thanks
     
  2. jcsd
  3. Aug 7, 2017 #2

    scottdave

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    In general, more poles will result in higher available torque. There is less angular distance between one magnetic peak, and the next. You may be interested in this article . http://www.shelleys.demon.co.uk/fjun04va.htm
     
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