On Wed, 29 Dec 2004 06:13:29 GMT, "Jerry Martes"
wrote:


JKeagle

I had expected to read a response from you concerning your more exact
needs regarding this "phase converter". Your project interests me, but it is
unclear if you are hoping for a donation, or if you have interest in
developing a power source for the sirens.
I'm pretty sure you could power your sirens with a much smaller rotary
converter. It could be a real learning project for some electrically
inclined young scout. I'd expect a little (5 HP) idler at each siren could
make all the sound you'd ever need.
If this *is* a real project where only the "results" (siren sounds) is the
goal, and no *overseeing specification writing group* of people need to be
satisfied, I'd voluntere my time and materials to a task like this. I'd
even bring some parts.

I'd sure like to hear more about what your 'constraints" are.

Jerry (who lives about a day's drive away from Payson and
would be willing to drive there)



Rotary converters are sooo 60's. Siemens, GE, Allen-Bradley among
others make solid state motordrives of all types and power ratings.
Basically they rectify the incoming power and reconvert the DC to
variable voltage and frequency AC (user defined). This means many
models accept being powered by single phase while driving a
three-phase motor.

- YD.

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