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Higher current same capacitor question



Original poster: "Kelly & Phillipa Williams by way of Terry Fritz <twftesla-at-uswest-dot-net>" <kellyw-at-ihug.co.nz>

Hi All,

I have a question to do with capacitor sizes, current capability of the
transformer,
cap wear and tear etc.

I have a Tesla Coil that is designed for a 15kV rms 120mA NST farm using a
40nF
MMC capacitor. I have recently aquired a 11kV rms 5kVA power distribution
transformer, and I am wondering if I can take advantage of the increased
current capabiltiy of the power transformer.

My power supply is 230 V, 50Hz, 20 Amps max, which corresponds to
418mA on the secondary of the power transformer.

My 40 nF capacitor is way under resonant size for this transformer,
which is 121 nF  !!

Question 1: I have a static spark gap, so could I set the gap to fire at
10-11kV
and let the system run at an insanely high bps without damage to the MMC?
Would the RMS current on the capacitor be way over their rating?
Can I use the full current capability of this transformer with risking
damage to the MMC?

Question 2: I have two oil-filled plate caps that are not currently being
used. However, I suspect that I CAN'T use the plate caps and the MMC
together at all because of the differing dv/dt's of the capacitors - the MMC
will discharge very fast and then the plate caps will expend energy
re-charging the MMC. Is this correct ?The plate capacitors are 15kV DC 11 nF
and        30 kV DC 5nF .

Comments ? Suggestions ?
Being a student, I can't buy any more MMC caps for a long while, and I can't
afford to break the MMC I have.

Thank you very much,
Alan Williams.