[Amps] Ac oil-filled caps on dc

[Jim Kearman]

I have a line on some 100-uF, 370-Vac Sprague oil-filled caps, new. I've read that ac oil-filled caps can be used at dc voltages of 3X the ac rating. So it looks like four of these in series would give me a suitable filter for a 3000-Vdc (no load) dc supply. Before I throw the breaker for the first time, though, I wonder if anyone else is using them? Thanks.

73,

Jim, KR1S