Hi all,
I stated 208v * 91turns = 11Kv. My bad, I was experimenting with 120v in my
numbers and transposed it. The actual calculated transformer output at rated
208v input is 18,928 volts per phase! . So take 18928 * 1.41 (half wave) =
26,688 * 1.73 (fullwave) = 46,171 DC volts 6 pulse - would make a great Cap
charger with resistive current limiting! I already have one of those by
Lamda at 50Kv - too scary for me with a 16 uF 50KV discharge cap! ***Both
are 4 Sale, BTW***
Under load with (6) 8020 tube losses and the beefy 150H 564 ohm choke in
real life = 24KV. Something doesn't seem right intuitively... Maybe the
transformer core was not energized well enough to reflect real numbers on
the primary. What would be a better charging voltage into the secondary to
test this theory?
Working backwards from the name plate 24KV -out, assuming no resonate rise
we should have 24,000/ 1.73= 13873 / 1.41 = 9839 volts add losses of tubes
and inductor maybe 10k per leg? I don't get it, has to be a ratio error or
the auto-ranging on my Fluke is wacked out. I'll carefully try a higher
voltage and a different meter Sunday.
Thanks for indulging me.
Jim Mora
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