Re: Still more ballast problems w/Pig

To: tesla-at-pupman-dot-com
Subject: Re: Still more ballast problems w/Pig
From: "Paul Marshall" <klugmann-at-hotmail-dot-com> (by way of Terry Fritz <terryf-at-verinet-dot-com>)
Date: Thu, 22 Oct 1998 20:47:28 -0600
Approved: terryf-at-verinet-dot-com

Dwight,
   Taming the pig is not difficult. My coil operates from a 25 KVA pole 
pig at 14.4 kv.. I use 4 different transformers to ballast current. 
Three microwave transformers and a power transformer in series with 
their secondaries shorted. If I use all four I get 5.2 KW. If I use 
three I get 9 KW. And if I use only two I get 18 KW. At 18 KW the 
circuit would last about one minute before incinerating. I can run  
continously at 5.2 Kw (no overheating) at 9 Kw I could run for 15 or 20 
min before the circuit heats up. I bought the microwave transformers at 
a supply house for only $5.00 a piece. I hope this helps.

paul m

>Date: Wed, 21 Oct 1998 17:24:57 -0600
>To: tesla-at-pupman-dot-com
>Subject: Still more ballast problems w/Pig
>From: Tesla List <tesla-at-pupman-dot-com>
>
>Original Poster: dwight duncan <duncand-at-ccsalpha2.nrl.navy.mil> 
>
>
>Hi All,
>
>   Thanks for your responses in the past.  Now I have had my pig for 3
>weeks now and it still pops a 30 amp breaker with the home make ballast
>alone.  If I put a 3 KVA H&R x-former in series with the ballast it 
will
>work fine for a few minutes until the H&R x-former starts to over heat 
and
>I turn it off.  The way I have been testing the pig and ballasting is
>making a Jacobs latter as the load for the pig.
>    My ballast is the core of a 40 amp variac that I gapped with 1/16"
>acrylic.  I have wound 150 turns of 10 gauge Romex(house-hold wire) on 
it
>and I measure 14.8 mH and 5.8 ohms. The impedance is 11.379 ohms, this
>should draw only 21 amps of current yet the breaker pops seconds after 
it
>is thrown.
>    Is the variac ballast saturating?  I do know it seems to work with 
the
>H&R x-former thrown in series with it, but a 1-2 minute run time is
>unaccessible.
>    Any ideas and or suggestion.  These are as always greatly 
appreciated.
>After all the labor I put into that ballast it is very frustrating for 
it
>not to work and also knowing coilers do this all the time and have 
success.
> What am I missing.
>    
>Again, thanks for your responses,
>
>Dwight
>
>
>


______________________________________________________
Get Your Private, Free Email at http://www.hotmail-dot-com