Re: MMC question

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

Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> 


The peak potential of your 15 kV Erms xmfr = 15 kV x 1.414 = 20.2 kV so you
are already on the border line and this is the peak AC rating.

I suggest using 2.5 x Erms rating for best safety.  15 kV x 2.5 Erms = 37.5
kV DC rating.  Usually, anything over 32 kV DC rating is acceptable.

Otherwise you waste time trying to find out which cap is bad or the
performance degrades slowly and your coil starts performing poorly.  At only
$3 per cap it's always best to do it right the first time and not have
headaches later.

Dr. Resonance

Resonance Research Corporation
E11870 Shadylane Rd.
Baraboo   WI   53913

 > I have decided on the capacitors that the geek group recommend.
 > The ones I have on order are the 0.15 micro farad and rated at 2KV.
 > If I run these with sets of 10 in series they would have a voltage rating
 > of 20KV
 > I will be using a 15KV NST.
 > The cap size will be LTR and I am going to use a SRSG
 > Does it seem like I am cutting the voltage rating a bit close or will
these
 > caps hold up to that?
 > Any one have any experience with these.
 > I would rather drop my capacitance a little and put another one in series
 > for a 22KV rating if it is needed
 > But if I feel VERY confident they will hold up with 10 in series I want to
 > go that way.
 > I don't want performance at the expense of needed up keep due to cap
failures.
 >
 > Luke Galyan
 > Bluu-at-cox-dot-net
 >
 >
 >
 >