Thanks for all the Ballasting Tips, but one Last Question About the Pole Pig

["Ryan Ries" <spud-at-wf-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

	Okay, we drove an 8 hour round trip yesterday in order to pick up our
awesome new distribution transformer.  It's a single phase, 120v/240v in,
14400v/28800v out, 10KVA unit with two normal bushings (none of that weird
terminal connected to the case stuff, which is good :-)).  It's a beautiful
pig; not as much as a scratch on the porcelain insulators or rust on the
case.  I was able to get away with it for just $150 without tax.  The
manager of the factory (by the way, I pretty much got to take a "tour" of
the warehouse... tons of cores and cases and 55-gallon drums of transformer
oil, etc. etc. Very exciting. :-)) was very enthusiastic about our project,
saying "All I did when I was in high school was get drunk and chase girls."
 But I suppose that because even the manager had superiors, he sold me the
pig as a "cash only, I'm not gonna write you a receipt" kinda deal. :)
	Enough bragging, however.  I just want to say that I am very grateful to
everyone on the list who has helped answer my silly questions, without
which I surely would have had a much shorter Tesla coiling carreer thus
far. :)  But as such, I have yet another question about my pole pig,
concerning the purpose for all the terminals on the blasted thing:
	Disregarding the two huge bushings on the top that are of course HV, there
are three primary terminals in a row.  My first instinct was "hot, neutral,
ground" - in the case of normal 120v operation.  But then, I noticed
another terminal with no insulation further down on the case by itself. 
That terminal seems to be more likely to be ground.  And oh yeah, this
doesn't really affect anything, but just for curiosity, there are also a
couple of "plugs" on the case.  I first though those might be plugs that
you can pull to drain the oil out of the transformer, but who knows.
	Anyway, if you can clarify this for me, I would once again be quite happy.
:)  And of course, I will have some more pictures on my webpage.
	
	Thanks,
	    Ryan Ries