Re: MMC lead length and bends...

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Antonio Carlos M. de Queiroz" <acmdq@xxxxxxxxxx>

Tesla list wrote:
> Original poster: "Jim Mora" <jmora@xxxxxxxxxxx>
> Hello Group,
> Has anyone ever taken in account the capacitor 
> lead length and bends in a LARGE mmc >300 .15uf 
> caps. If it is a non issue how are you 
> assembling the mmc short leads 3/8 spacing? I 
> was going to put a glass bead on both ends of 
> the cap, pass it through a lexan plate and 
> solder the resistor on the other side. And make 
> the connection to the next cap with a soldered 
> butt splice. The leads are making 2 right turns? 
> 18 rows of 22 each string .12uf total, 44KV. 
> That is lot of tiny inductors this method, yes?
> Furthermore, inductors in series are 
> additive-probably wholly due to the inverse 
> square law. Anyone have any ideas on this issue? 
> Or measured their MMC inductance? Iâ??ll bet its 
> a lot more then cumulative inductance of the 
> caps only. Someone please tell me Iâ??m fussing 
> over nothing; especially if itâ??s true â?º

Supposing that the capacitors are not specially inductive, the inductance
of a straight conductor, that can have capacitors in series with it, is
around 1 microhenry/meter (depends on the length and on the diameter, but
is around this). Just evaluate the length of the MMC strings,
counting with the capacitors too, and treat them as inductors in parallel.
(This ignores the effect of the mutual coupling between the strings.)
Add the inductance of the external wiring using the same rule.

Antonio Carlos M. de Queiroz