Re: purpose of a variac?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Barton B. Anderson" <bartb@xxxxxxxxxxxxxxxx>

Possibly Gerry. The closer the alignment, the more phasing will be 
affected with voltage. I personally haven't found it as a needed 
adjustment between say 50% and 100%, but then, there are are a lot of 
variations of rsg's (disk size, electrode size, # of electrodes, 
speed, voltage, etc..). Some may find more of a phasing variation than others.

Take care,
Bart

Tesla list wrote:

> Original poster: "Gerry  Reynolds" <gerryreynolds@xxxxxxxxxxxxx>
>
> Hi Bart,
>
> I bet this is the real reason that an SRSG needs to be rephased as 
> the power is brought up.  Other theories were the leakage inductance 
> in the variac and the nonlinarities of the NST.  Dmitry will be happy :-))
>
> Gerry R
>
>
> > Original poster: "Barton B. Anderson" <bartb@xxxxxxxxxxxxxxxx>
>
>
> > An rsg is (normally) adjusted for minimal electrode spacing. It 
> > "will" fire at reduced voltages. I haven't read the documents your 
> > referring to, but I can only assume their thinking rsg (if static 
> > gap, then I would agree). Rsg's will fire at reduced voltages.
>
>
> As the
>
> > voltage is turned up by the variac, the electrodes will arc sooner 
> > (before alignment).
>
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^