MMC Design Question

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "G by way of Terry Fritz <twftesla-at-qwest-dot-net>" <bog-at-cinci.rr-dot-com>

Hello List,

I just gave Terry's Excel MMC Calc a try for the first time 
(http://www.hot-streamer-dot-com). I am concerned about the life 
expectancy it gave the MMC I would like to build. It seems that the 
sheet's "best price for fully safe design" indicator doesn't take 
life hours into account. The arrays returned using my specs had an 
estimated life of 0 hours! Has this life estimate proven to be 
accurate?
Here are the specs I am working with. If another of you can try to 
run this and give a recommendation, I would really appreciate it.

RMS Voltage: 22 kV
Amperage: 400 mA max
Capacitance: 50 nF
Break rate: 120 bps
Using Geek Caps 0.15uF/2000VDC/500VAC

I already have 33 of the Geek caps, this redesign is to compensate 
for a new, higher-power HV supply (8 kVA). If possible, I would like 
to build on this prior investment. Should I just start saving money 
for a commercial cap?

Thanks, all, for your help and dedication to the community!
Gregory