Re: PFC on MOT Pair

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

Original poster: "Herwig Roscher by way of Terry Fritz <twftesla-at-qwest-dot-net>" <herwig.roscher-at-gmx.de>


Matthew Smith wrote:
 
> I guess that is not enough data to calculate the value of a PFC 
> capacitor but I would like to know

Matthew,

PFC capacitors only compensate sinusodial power factor lags, like 
those from linear (non-saturating) inductors unfortunately. As I 
suspect, that your MOTs are working far from this condition, there 
is no way to calculate the correct capacity. The only way IMO is 
trial and error, but the value found will be valid for a certain 
configuration i.e. ballast, tank capacitor, break rate.... only.

If your goal was reducing the supply cord current, every µF helps.

Good luck and safe coiling!

Herwig