Re: Potential Transformer

To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
Subject: Re: Potential Transformer
From: Tesla List <tesla-at-stic-dot-net>
Date: Mon, 15 Sep 1997 23:43:05 -0500
Approved: tesla-at-stic-dot-net

From: 	Scott Myers[SMTP:scotty-at-wesnet-dot-com]
Reply To: 	scotty-at-wesnet-dot-com
Sent: 	Monday, September 15, 1997 9:28 PM
To: 	Tesla List
Subject: 	Re: Potential Transformer

Tesla List wrote:

> From:   Rick Holland[SMTP:rickh-at-ghg-dot-net]
> Sent:   Monday, September 15, 1997 3:21 AM
> To:     Tesla List
> Subject:        Re: Potential Transformer
>
> Tesla List wrote:
> >
> > From:   Justin[SMTP:justinh-at-interlaced-dot-net]
> > Sent:   Saturday, September 13, 1997 4:35 PM
> > To:     tesla-at-pupman-dot-com
> > Subject:        Potential Transformer
> >
> > I recently acquired a General Electric potential transformer.  I was
>
> > wondering if anyone had some info on how to incorporate a
> transformer
> > like this into a Tesla coil system.  Problems, safety considerations
>
> > or comments would be welcomed.  I was wondering if a rotary-gap
> would
> > be required to use this transformer or not.  I haven't done anything
>
> > with the trannie yet, but I did test it, and it appears good.
> Anyone
> > know how much it would be worth on the used market?  It's in good
> > condition.  Here's more information from the nameplate:
> > TYPE JE-42 Potential Transformer (G.E.)
> > CAT NO. 93X883     NO. D695347
> > MODEL OR SPEC NO. HBF4         CY 50-60
> > PRIMARY V 14,400
> > RATIO  120:1       VA 400
> > IMP LEVEL 95 KVFW
> > MAX OPERATING VOLTS 16,560 at 50-60 CY.
> > CAUTION: Before installing or operating read inst. GEH-230.
> >
> > Coiling in Ohio
> >
> > Justin Hennigan

This transformer should work out fine for coiling, howver, because it is
only rated for .4 KVA (400 VA) , it is going to require enough ballast
to keep ot from going too much over this rating, else you will burn it
up for sure.  Just try to stay within its operating voltage rating
running it in reversse and you should be ok.  Also keep in mind that
thse transformers are not as "blow proof" as a pole type.

Safety considerations????  We are talking about coiling.  MUCH safety
consideration should be used, as that transformer can kill.  I would
suggest using standard industrial lockout procedures with a fused
disconnect.  And even then, be EXTREMELY careful.

Scotty