Pig PFC (was Re: Inductive Kick LTR Pig Systems)

["Malcolm Watts" <M.J.Watts-at-massey.ac.nz> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Hi all,
         After putting my foot in my mouth already on this 
subject I am satisfied in my own mind that the sole purpose of 
PFC for a pig is to cancel the primary magnetizing inductance 
in the transformer. The ballast and primary cap should be self-
cancelling if the charging is mains resonant. A crude model of 
the transformer is that of an ideal transformer with its 
primary shunted by a magnetizing inductance (Lp). In other 
words, PFC for a pig sounds like a jolly good idea.

Malcolm