RE: Cheap parts for high-power resistive ballast (for pole transformer). (fwd)

["High Voltage list" <hvlist@xxxxxxxxxx>]

Original poster: <sroys@xxxxxxxxxxxxxxxxx>



---------- Forwarded message ----------
Date: Tue, 17 May 2005 12:24:26 -0500 (CDT)
From: brianb@xxxxxxxxxx
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: RE: Cheap parts for high-power resistive ballast (for pole     
    transformer). (fwd)

Jim/all,

The spool of wire is a good solution for lower power levels but isn't
practical at higher powers. I don't have my notes with me at the moment
but I think it took me six rolls of 10awg for ~100amps. Plus they got
REALLY HOT. Not someting I could get past a Fire Marshall. In the end the
welder solution was cheaper and works like a charm...

Regards,
Brian B.
www.teslacoil.com
www.brianb.org


> Original poster: <sroys@xxxxxxxxxxxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Mon, 16 May 2005 21:53:07 -0700
> From: Jim Mora <jmora@xxxxxxxxxxx>
> To: 'High Voltage list' <hvlist@xxxxxxxxxx>
> Subject: RE: Cheap parts for high-power resistive ballast (for pole
>     transformer). (fwd)
>
> I have seen several posts of using one or two 500 foot rolls (on their
> original spools) of #12awg in series with one leg on the Tesla list. You
> may
> need to add resistance @30KVA!
> Regards
> Jim Mora
> Ojai,Ca US
> -----Original Message-----
> From: High Voltage list [mailto:hvlist@xxxxxxxxxx]
> Sent: Sunday, May 15, 2005 7:35 PM
> To: hvlist
> Subject: Re: Cheap parts for high-power resistive ballast (for pole
> transformer). (fwd)
>
> Original poster: <sroys@xxxxxxxxxxxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Sun, 15 May 2005 10:37:37 +0100
> From: Mike Harrison <mike@xxxxxxxxxxxxxxx>
> To: High Voltage list <hvlist@xxxxxxxxxx>
> Subject: Re: Cheap parts for high-power resistive ballast (for pole
>     transformer). (fwd)
>
> On Sat, 14 May 2005 19:40:29 -0600 (MDT), you wrote:
>
>>Original poster: <sroys@xxxxxxxxxxxxxxxxx>
>>
>>
>>[Sorry for the delay in posting.  I was at a meeting where I *thought* I
>>would have had access to the list, but actually didn't.  SRR]
>>
>>---------- Forwarded message ----------
>>Date: Sun, 8 May 2005 21:16:35 -0700 (PDT)
>>From: J. Aaron Holmes <jaholmes@xxxxxxxxxxxxxxxxxx>
>>To: hvlist@xxxxxxxxxx
>>Subject: Cheap parts for high-power resistive ballast (for pole
> transformer).
>>
>>Howdy, hvlist,
>>
>>In addition to some Tesla coiling, I'd like to do some
>>ridiculously high-powered Jacob's laddering :)  I'm
>>shooting for 30kVA.  Unfortunately, I don't feel like
>>investing much (in time or money) in a big inductive
>>ballast.  Instead, I thought I'd just install six or
>>eight hot water heater elements in a cheap metal trash
>>can (filled with water, of course), then use some big
>>relays to put them all in parallel so that I could
>>fire the thing up with only a single element in line,
>>then bring the others in one at a time until I'm
>>running at full throttle.  Sound workable?  I could
>>even install a faucet in the side of the trash can so
>>that the thing could be made light and portable on
>>short notice (great for Teslathons).  Now on to the
>>question:  Is there something cheaper that might
>>provide the same functionality?  Amazingly, hot water
>>heater elements appear to be relatively non-cheap.
>>I've seen a few tempting bulk lots go by on eBay, but
>>they were threaded in an odd way that made me suspect
>>they'd be difficult to work with.
>>
>>Should I just get a spool of nichrome wire, some
>>cinder blocks, and a box fan? :))
>
> Electric shower elements would be another possibility, with a little
> plumbing, a small pump and
> radiator/fan you could avoid the need for the big trash can and water
> supply.
>
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