Re: PT Ballast Question

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

Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>

Hi,

"Theoretically" doubling the current limiting reactance should decrease to 
current by 1/2...  So simply adding another roll of wire should get you to 
13 amps....  Things my get a little odd, but it is supposed to work...  Let 
us know ;-))

Cheers,

         Terry

At 07:46 PM 10/12/2004, you wrote:
>I recently picked up a nice GE 1.5kva 100:1 pt and
>have a question or two about limiting the current it
>pulls from the line.
>
>I set up a jacobs ladder using a 500ft spool of 12ga.
>wire for ballast (as suggested by Terry Blake) and
>found that it did indeed limit the current to around
>26 amps.
>
>I'd like to reduce the current further (to around 12
>amps or so) before I incorporate this transformer into
>my coil.  Would it be feasible to add another 500ft
>spool of wire in series with the first?  Any guesses
>how much additional current limiting this might give
>me?
>
>One other related question... If I were to get a MOT
>or two to use as ballast, would this be more effective
>than the wire spool method?  I'm keeping my eyes open
>for an old arc welder to use as ballast, but in the
>meantime...
>
>All replies appreciated!
>
>Thanks,
>Greg
>
>
>
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