Re: bad pole xmfrs

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

Original poster: "Richard Modistach" <hambone-at-dodo-dot-com.au> 

ha, i shoulda known better,
comparing pigs to nst's is like
comparing diesel engines to gas engines.

just talked to a sparky friend of mine here in aus
about those ratings, it does seem a tad over the top to me
but he said he knows of a few transformers locally that
run stupid overratings to clients they are supplying, one
tranny rated 40A is running an ice making\freezing plant
at 63A 24\7 plus other houses. the electric co here
works on diversity, the fact that not all clients are pulling
anywhere near max load all the time and less chance all
at once. if it does happen then the time it's destructivly overloaded
for will determine if she blows or not, hence probably why the odd
pig spits the dummy every now and then, if it aint broke it may never happen
so don't fix it, if it does break, big deal, just put a bigger one on.
:)))))))))

regards
richard
aus

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, April 11, 2004 9:08 AM
Subject: Re: bad pole xmfrs


 > Original poster: "Hydrogen18" <hydrogen18-at-hydrogen18-dot-com>
 >
 > On pig over loading, heres something to keep in mind, the 37.5 KVA pig I
am
 > feed of off serves 4 houses. 200 amp service to each houses equals 192
KVA.
 > Is it just me, or does that seem a little weird?
 >
 > ---Eric
 > ----- Original Message -----
 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > To: <tesla-at-pupman-dot-com>
 > Sent: Saturday, April 10, 2004 12:44 PM
 > Subject: Re: bad pole xmfrs
 >
 >
 >  > Original poster: Yurtle Turtle <yurtle_t-at-yahoo-dot-com>
 >  >
 >  > We actually had to "rescue" the poor thing with a
 >  > chainsaw and a handtruck. You might remember me asking
 >  > the list for ideas on how to lower it from the pole.
 >  > We finally just cut it down. After rolling it
 >  > cross-country, we pulled it into the truck with only 2
 >  > 2x12's and the handtruck. The guy really earned his
 >  > pentium 200!
 >  >
 >  > Actually, unloading it was a breeze! I simply slid it
 >  > down the 2x12's without the handtruck. The only hard
 >  > part was keeping the weight evenly distributed on the
 >  > two 2x12's.
 >  >
 >  > I have no idea what it weighs, but since it has
 >  > aluminum windings, that may reduce it a pound or two.
 >  >
 >  > The picture you probably saw with "25" was after I
 >  > repainted it and used Home Depot stickers. Here's the
 >  > "before" picture. I like the "25+":
 >  >
 >  > http://www.hot-streamer-dot-com/adam/garage/pig_14.4kV_25kVA_1.jpg
 >  >
 >  > Adam
 >  >
 >  > --- Tesla list <tesla-at-pupman-dot-com> wrote:
 >  >  > Original poster: DRIEBEN-at-midsouth.rr-dot-com
 >  >  >
 >  >  > Hi Adam, all,
 >  >  >
 >  >  > Nice find! I recall seeing pics of this pig on your
 >  >  > webpage and it
 >  >  > was clearly marked "25" on the front. I'll bet it
 >  >  > was a real challenge
 >  >  > for two people to load a 25 kVA pig (which I suppose
 >  >  > would have to
 >  >  > weigh in at 400 to 450 lbs minimum) into the back of
 >  >  > a pickup, un-
 >  >  > less you had access to an overhead hoist or a fork
 >  >  > lift to assist
 >  >  > in your lifting efforts. And UNLOADING it would be
 >  >  > an even bigger
 >  >  > challenge w/out mechanical assitance :^O.
 >  >  >
 >  >  > I'd have to agree with you 100% on the pig vs NST
 >  >  > farm issue. Even
 >  >  > with a huge NST farm that supposedly adds up to the
 >  >  > same kVA rating
 >  >  > as a single pig, the pig powered coil always seems
 >  >  > to outperform the
 >  >  > NST driven coil, espcially in the catagory of
 >  >  > streamer brightness!
 >  >  > And a pole pig dosen't even "break a sweat" running
 >  >  > a coil at or even
 >  >  > significantly above its nameplate rating. It seems
 >  >  > like I was told
 >  >  > that the utility power companies don't even consider
 >  >  > upgrading a
 >  >  > pole transformer to a larger unit unless the demand
 >  >  > on it consistant-
 >  >  > ly exceeds its rating by a factor of 80% (18 kVA
 >  >  > draw from a 10 kVA
 >  >  > pig). Someone correct me on that if I'm wrong on
 >  >  > that, but I do know
 >  >  > that a pig can be ran at 2 or even 3 times its
 >  >  > nameplate kVA rating
 >  >  > running a Tesla coil for short runs (<5 minutes -
 >  >  > not too many of
 >  >  > us are gonna run a coil for longer time intervals
 >  >  > than that, anyway).
 >  >  >
 >  >  > David Rieben
 >  >  >
 >  >
 >  >
 >  >
 >
 >
 >