Forget the 3 phase power option..... that was more just out of interest on my part.?
I use the measured? off load voltage? and pri/sec? DC resistance values? method on PSUD-2? to? arrive at the source resistance.??
IE: 5361 Vac no load secondary.? .5 ohm? DCR primary.......and a 6.0 ohm DCR secondary DCR.? ? Source resistance per PSUD-2? =? 255.4 ohms?
FWB rectifier assy? ( 16 x 1N5408's used per the drop down rectifier option).? ?In actuality, it's 24 x 6A10's for each of the 4 x legs of the FWB assy.? ?I then paralleled 2 x identical FWB assy's.
800uf filter cap assy.? ?25 x 10,000 uf lytics in series.? Each cap has .0159 ohm ESR.... = . 3975 ohms? ESR.? Total uf is? 10,000uf / 25 = 400 uf.?
2? identical banks of series caps? are wired in parallel.? ?Results in a total of .19875 ohms? ESR.? ?Total uf = 2 x 400uf? = 800uf.?
Loaded to 2.5 amps,? PSUD-2? results in a loaded B+ of just 5549.4 vdc.? ? ?P-P ripple is just 14.914 volts.?
(unloaded, with just 6 ma of EQ current, 100k resistor across each lytic, it's? 7543 vdc.?
The loaded B+ results on PSUD-2? are WAY too low? vs measured results.??
This is using a dahl 253 lb? hypersil C core? plate xfmr,? rated for 16 kva? CCS.?
But by reducing the pri DCR? down somewhat....( and keeping the sec? DCR fixed at it's measured 6.0 ohms), the resulting? source resistance is greatly reduced.......... which then results in a loaded B+? that is the same as what was measured. (6400 vdc).?
