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RE: [teslafy] Re: high-frequency induction motors and generators?

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  • David Thomson
    Small is as in aircraft servo motor. I have several web sites, but none of them have my surplus stock listed. Sorry I don t have anything big enough for your
    Message 1 of 6 , Jul 5, 2002
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      Small is as in aircraft servo motor. I have several web sites, but none of
      them have my surplus stock listed. Sorry I don't have anything big enough
      for your hybrid vehicle.

      Dave

      -----Original Message-----
      From: harmonseaver [mailto:hseaver@...]
      Sent: Friday, July 05, 2002 8:52 AM
      To: teslafy@yahoogroups.com
      Subject: [teslafy] Re: high-frequency induction motors and generators?


      How small is small? I'm really looking for something to do a hybrid
      vehicle with. Do you have a website?


      --- In teslafy@y..., "David Thomson" <dave@v...> wrote:
      > I have lots of small 400hz motors in stock if you are interested.
      Nothing
      > higher though.
      >
      > Dave
      >
      > -----Original Message-----
      > From: harmonseaver [mailto:hseaver@c...]
      > Sent: Thursday, July 04, 2002 5:20 PM
      > To: teslafy@y...
      > Subject: [teslafy] Re: high-frequency induction motors and generators?
      >
      >
      > --- In teslafy@y..., "harvich" <harvich@y...> wrote:
      > > --- In teslafy@y..., "harmonseaver" <hseaver@c...> wrote:
      > > > Does anyone know of a source for these, preferably used or surplus?
      > >
      > > Fessenden worked with production of high frequency alternators, where
      > > apparently Alexanderson may have been the primary engineering
      > > influence in their production. An ordinary alternator has a field
      > > that moves in rotation by slip ring contacts, via DC delivery for a
      > > rotating field. The receiving coils, or stator winds are stable and
      > > mounted in the housing. In the high frequency alternator both
      > > windings are designed to rotate against the other. It is said that
      > > Fessenden once insisted in a wooden commutator, which caused
      > > Alexanderson to shake his head and mutter comments of derision.
      > > Nevertheless they built them.
      > >
      > > The high frequency motor is not known.
      > > HDN
      >
      > It's not? Gee, the US military uses tons of them in aircraft and on
      > ships. They're all 400hz, although I was wondering if there was any
      > source for higher frequencys. And pretty much any induction generator
      > will become a motor or visa versa.
      >
      >
      >
      >
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      >
      >
      >
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