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shorted turns

Discussion in 'Hobby Electronics' started by [email protected], Dec 19, 2007.

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  1. Guest

    Need help with shorted turn info. I am aware of eddy currents caused
    by shorted turns in a transformer or solenoid driven by an A.C.
    voltage. Also that a D.C. solenoid can have a metal former as there is
    no alternating current to prduce eddy currents.
    But I wish to build a solenoid D.C. driven, but switching off & on at
    about 3 Hz. Will a shorted turn ( alluminium former) cause a problem.
    (efficiency is very important) All constructive comments welcome.
    Davey
     
  2. Bob Parker

    Bob Parker Guest

    A metal former will slightly slow down the buildup and decay of the
    magnetic field. Unless you need the solenoid to snap in and out
    extremely quickly, my feeling is that it probably won't be a problem.
    All you can do is build it and see how it behaves...

    Bob
     
  3. Guest

    Thanks Bob,
    I do want the solenoid to act as fast as possible so I will slit the
    former to make it open circuit.
    Too hard to rewind as it will be 1007 turns of 2.0 mm wire.
    Davey
     
  4. Bob Parker

    Bob Parker Guest

    That's one mean solenoid! Good luck with it. :)

    Bob
     
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