Re: Oil-less Pig

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

Original poster: "Bunnykiller by way of Terry Fritz <teslalist-at-qwest-dot-net>" <bunikllr-at-bellsouth-dot-net>

Tesla list wrote:

>Original poster: "Mike Tucknott by way of Terry Fritz 
><teslalist-at-qwest-dot-net>" <michael.tucknott-at-virgin-dot-net>
>
>   Hi List
>
>Well some bad news on the old pig front, it has sprung a leak, big one 
>(well big enough).
>I drained the rest of the oil out this afternoon and Brian has taken the 
>shell away in order
>to try and find out where it is leaking and to see if it is repairable.
>
>What I want to know is, is it possible to run a pole pig WITHOUT the oil. 
>I know the oil
>helps with the cooling but as tesla coil runs are short that should not be 
>a problem, but
>what about the coil insulation ?????.
>
>The pig is a 15kVA unit  230v AC input and 11.5kV AC output. There are a 
>few pics of the
>coil in it new box on our web site (if that`s any help).
>
><http://freespace.virgin-dot-net/michael.tucknott/cutdown.htm>http://freespace.virgin-dot-net/michael.tucknott/cutdown.htm 
>
>
>So who has a pig without the oil and how long did it last.. ??
>
>Cheers Mike Tucknott & Brian le Page
>
>
ewwwwwwwwwwww     a circular primary with a dual secondary.....    no oil = 
cochon-de-liat  ( pronounced  koo-shon- da' lay) ( and for those not 
familiar with Cajun terms)  PIG ROAST     :)~ .....

if one of the secondary wirings comes from the inside of the coil ( and in 
most cases it does....) , you will have a voltage potential near the 
primary of about 11KV....  even though there is pleanty of paper insulation 
there, ...  and if no oil is present, corona will develope and "dry" out 
the paper insulation and poof...   wait till your friend finds the leak....

I had gotten some secondary coils from a X-ray Xfmr and built a circular 
primary as the same as your piggie...  it put out 14.4KV ... even tho I 
"tried " to insulate things rather well ... the corona from the secondary 
to the primary was too much... If I had only used oil.....


Scot D