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how can we change a motor from 220V to 12 V ?

Discussion in 'Photovoltaics' started by Mylinux, Sep 21, 2003.

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  1. Mylinux

    Mylinux Guest

    how can we change a motor from 220V to 12 V ?
     
  2. Mylinux

    Mylinux Guest

    sorry , poor written computer english; it should be read as:


    how can we change a motor from 220V AC to 12 V DC?
     
  3. [...]
    It's not at all a problem with your English we're facing here, but
    with your complete ignorance regarding the subject you're talking
    about.

    You never seem to have grasped how usenet works, either. I'd say your
    question is off-topic in every single one of the 6 newsgroups you
    crossposted it to.

    The answer to your question is: you can't, period. Odds are you'ld
    kill yourself doing anything that involves 220 AC lines. Somebody
    else might be able to do it for you, though. So please acquire
    professional assistance.
     
  4. ben williams

    ben williams Guest

    You want to rewind a 220vac motor to run on 12vdc?
    Or just run a 220vac motor on 12vdc?

    The first is virtually impossible, or at best a very expensive waste of
    time.
    The second requires an inverter with a 12vdc input and a 220vac output. Not
    too hard to find in european coumtries.
    ben
     
  5. Ken Lee

    Ken Lee Guest

    Basically I would follow Bryan's recommendation. Take the specs of the
    220V AC motor to your motor distributor. However if you are asking how
    to run a 220V AC motor (system) off a 12V DC supply then I would be
    looking at 12 volt to 220V AC inverters.

    Ken.

    +====================================+
    I hate junk email. Please direct any
    genuine email to: kenlee at hotpop.com
     
  6. Steve Urbach

    Steve Urbach Guest

    Except for the fact the original message was posted from the Western
    US, I would have guesed 220V 50Hz motors used in Europe and Hong Kong.
    Most 220 (only) motors are bigger than 1/2 HP (there are always
    special exceptions <g>). This project would need a huge battery array
    to support the start current.

    Steve
     
  7. René

    René Guest

    Basically a shunt commutating motor runs off AC as good as DC. If you
    connect your vacuum cleaner to e.g. a 24V DC source it might just
    turn. (not very hard though)
    Theoretically winding down the rotor and rewinding it with a larger
    diameter wire should suffice.
    Most people do not have *that* amount of spare time however:)

    A RC Model shop may be a good place to pick up a purpose built
    hi-performance DC motor.
     
  8. Don Kelly

    Don Kelly Guest

     
  9. Dave McMahon

    Dave McMahon Guest

    I think the answers are over-complicated in Britain we have 22V AC power
    (not 110V) so you just need a standard power adaptor (like one you use to
    charge a mobile (cell) phone but with 12V DC output and make sure the power
    adaptor has at least 100mA (measure of current) MORE than the motor is rated
    at (to prevent overheating of power adaptor)

    I might be wrong but this is how I interpreted the question:

    How can I run a 12V DC motor from mains power?
     
  10. Hey Mr. Hans-Berky-bobber, try and be a little civil to someone that is
    asking for help. If you can't help, move on. no one wants or needs your
    sarcasm. if you think it made you look intelligent well...

    you know the old adage about keep you mouth closed and let them think you a
    fool or open it and confirm you are......
     
  11. Mylinux

    Mylinux Guest

    How can I run a 12V DC motor from mains power?
    no
    my original question


    how can we change a motor from 220 v to 12 V?
     
  12. Al Gosselin

    Al Gosselin Guest

    If you've been reading the other replies, there are two ways you can
    go here.

    1) You can physically remove the 220V motor that you have and replace
    it with a 12V motor of the same size. This is like the way you
    "change" a tire. Once you've done this replacement, you'll need much
    larger power wires, assuming you want the same torque.

    2) You can't. A 220V AC motor, generally can't be changed into a 12V
    motor, without massive internal changes. The work involved would mean
    that choice 1) would be better.

    The last time I tried something like this, I was around 7 years old,
    and I tried to plug my 3V Erector set motor into a 110V outlet. The
    motor never worked again.
     
  13. Dave McMahon

    Dave McMahon Guest

    I might be wrong but this is how I interpreted the question:

    How can I run a 12V DC motor from mains power?

    I think the answers are over-complicated in Britain we have 22V AC power
    (not 110V) so you just need a standard power adaptor (like one you use to
    charge a mobile (cell) phone but with 12V DC output and make sure the power
    adaptor has at least 100mA (measure of current) MORE than the motor is rated
    at (to prevent overheating of power adaptor)
     
  14. Michael Uray

    Michael Uray Guest


    If the Motor uses 1 Phase you can use a inverter (12VDC->220VAC). But if
    your Engine uses 3 Phases, you need a inverter (12VDC->220VAC). and a
    frequency converter (220VAC). But if the engine has a higher
    achievement, it becomes surely too expensive in these 2 kinds and it is
    better you change to a type with 220VAC.

    greets
    michi
     
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