alt.energy.renewable

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"The Flavored Coffee Guy" wrote in message
news:b5ff84a9-5c74-4b96-9514-4327823ada88@e6g2000prf.googlegroups.com...
> Just remember this, a transformer is designed for a purpose and it can
> be either a step up transformer or a step down transformer.
> Everything else you need to know is here.
>
>
> Go to this web site to pick up the basic theory:
> http://elgersmad.homestead.com/files/resonance/transformer_motor_theory.pdf
>
> Go to this link to understand that it will work:
> http://www.gutenberg.org/files/11498/11498-h/11498-h.htm#4
>
> Go to this link for the formula an equations required to design and
> build your own:
>
> Notes for an Introductory Course On Electrical Machines and Drives
> http://www.egr.msu.edu/~fzpeng/ECE320/ECE320-Notes-Part1.pdf
>
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So you have a crude switched reluctance/induction motor with the secondary
on the stator rather than the rotor. So???
Note that in an efficient induction motor, core eddy currents are as small
as they can be made and the rotor currents are in well designed short
circuited rotor windings. They are, in fact, transformer secondary
windings. In fact, a conventional induction motor is simply a transformer
with a rotating secondary. In this respect, you have simply switched rotor
and stator-basically as you have stated.
Note also that if the rotor windings of a conventional motor are brought
out to to an external load, power can be taken from these windings - as in a
wound rotor motor. In that way it is a transformer as well as a motor.
Note that the input power must supply the losses, transformer output and
mechanical output and all are interrelated. Definitely an efficiency, at
best, considerably lower than that of a stationary transformer. No overunity
involved.

As for the emf kick, it is really questionable as to what you are trying to
imply. Are you talking about back emf 0-if so, why? It exists in any motor
and is related to power transfer in all motors.

Why the capacitor?- resonance isn't going to give any energy boost and
secondary frequency will vary in any case.

Anyhow, your msu reference is not bad at an introductory level. I can't say
the same for the theory in the main article.

However, have fun.
--

Don Kelly dhky@shawcross.ca
remove the X to answer