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NST VA Rating and Power Factor
Original poster: "Bill Vanyo by way of Terry Fritz <twftesla-at-uswest-dot-net>" <vanyo-at-echoes-dot-net>
My power supply consists of three 15/60 NST's. Two are Franceformers,
and are marked 495 VA, and also have "High Power Factor" on the label.
The other is a Magnatek/Jefferson, marked 900 VA.
Does this mean that I will have little to gain by adding PFC caps to the
When adding PFC caps, is there any point in placing them on each NST?
Since they're in parallel, I can just put the PFC caps in one place,
hooked in parallel, no?
Also, regarding the problem of tripping the house breaker (It was on a
15amp breaker, but there is a 20amp available that I'll try next time):
I've got a 240 volt line in my garage (20 amp breaker). If I use my
variac to step this down to 120 volts, will I be able to draw more
amperage? The variac is 240 volt 50 amp, and has multiple terminals,
and I think there's a way to use it as a stepdown (other than just
leaving the dial at 50%), though I'm not sure how to do this (asking in