RE: question

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

Original poster: "David Thomson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dave-at-volantis-dot-org>

>I think the primary is acting as one plate of a capacitor, while the other
plate is the ground. The primary is vibrating due to electromagnetic forces
between turns and between the turns and ground.

Thanks for your insight, Godfrey.  Yes, the coil must be acting as one side
of a capacitor to ground.  Fluxuations in the ground current create
fluxuations in the coil which cut across the secondary windings.  Do you
think the potential transformer is acting like a charge amplifier?

>Can you describe that 50,000 volt potential transformer?

This is a Westinghouse model 1023084C potential transformer.  There are two
wires AC-in, and two wires DC-out.  The DC output is two large ceramic
standoffs, one labeled positive and the other labeled negative.

David Thomson
dave-at-volantis-dot-org <mailto:dave-at-volantis-dot-org>


-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Tuesday, January 29, 2002 2:06 PM
To: tesla-at-pupman-dot-com
Subject: RE: question


Original poster: "Loudner, Godfrey by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <gloudner-at-SINTE.EDU>

Hi Peter

I think the primary is acting as one plate of a capacitor, while the other
plate is the ground. The primary is vibrating due to electromagnetic forces
between turns and between the turns and ground.

Can you describe that 50,000 volt potential transformer?

Godfrey Loudner

> -----Original Message-----
> From:	Tesla list [SMTP:tesla-at-pupman-dot-com]
> Sent:	Monday, January 28, 2002 11:35 PM
> To:	tesla-at-pupman-dot-com
> Subject:	RE: question
>
> Original poster: "David Thomson by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <dave-at-volantis-dot-org>
>
> Peter,
>
> Here's a question for you.  I have a 27" flat spiral secondary.  Connected
> to the outer wire is the positive terminal of a 50KV potential
> transformer.
> The negative terminal of the 50KV potential transformer is connected to
> ground.  There is nothing connected to the center of the flat spiral
> secondary.  Over the outside of the 27" flat spiral secondary coil I have
> wound a primary of 6 turns of coax cable.  At one of the coax ends I place
> a
> diode.  Connecting the other end of the coax and the diode to a digital
> voltmeter, I get 150V of DC current when I power up the transformer.
>
> Why is there an induced voltage in the primary if there is no current
> flowing in the secondary?  And why does the coax cable vibrate?
>
> Dave
>
> David Thomson
> dave-at-volantis-dot-org <mailto:dave-at-volantis-dot-org>
>
>
> -----Original Message-----
> From: Tesla list [mailto:tesla-at-pupman-dot-com]
> Sent: Monday, January 28, 2002 5:36 PM
> To: tesla-at-pupman-dot-com
> Subject: question
>
>
> Original poster: "Peter Lawrence by way of Terry Fritz
> <twftesla-at-qwest-dot-net>"
> <Peter.Lawrence-at-Sun-dot-com>
>
>
> Trick question for the day...
>
> Tesla coils work by "induction", the changing magnetic field around the
> secondary coil induces a voltage in it. The direction of the induced
> voltage
> is that of the coil, so the question is why don't the sparks also go
> around
> in the same circular pattern as the induced voltage.
>
> Trickier question, why doesn't this happen when the toroid breaks out
> early.
>
> Peter Lawrence.
>
>
>
>