Re: Transformers, Grounding, Cable questions.

• To: tesla-at-pupman-dot-com
• Subject: Re: Transformers, Grounding, Cable questions.
• From: Tesla List <mod1-at-pupman-dot-com>
• Date: Sun, 5 Oct 1997 12:12:08 -0600 (MDT)
• Approved: mod1-at-poodle.pupman-dot-com

---------- Forwarded message ----------
Date: Sun, 05 Oct 1997 11:11:59 +0000
From: Greg Leyh <lod-at-pacbell-dot-net>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: Transformers, Grounding, Cable questions.

Phil Chalk wrote:


> 1.  Does anyone have any preference (& reason) for
> which order to connect the isolating transformer &
> (auto) variac ?  i.e. mains-isolation-variac-load, or
> mains-variac-isolation-load ?  Assuming the in-between
> connections are 'finger-proof' are there any pros &
> cons ?


The mains-variac-isolation-load configuration is the 
preferred method, especially if you are planning on 
physical contact with the variac (ie. adjustments) 
during operation.

Proper division of circuit grounds and good shielding 
techniques should obviate the need for such draconian 
measures as an iso xfmr, IMO.
Besides, isn't that the NST's job?


-GL

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