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Yet another grounding question (Xfmr ground)
From: mikey1[SMTP:mikey1-at-gladstone.uoregon.edu]
Sent: Saturday, November 08, 1997 8:40 PM
To: tesla-at-poodle.pupman-dot-com
Subject: Yet another grounding question (Xfmr ground)
Greetings,
I have read many of the numerous discussions, both on the list and in
the archives, regarding proper grounding, RF requirements, etc., and
understand the need for at least two high quality grounds; one devoted
to RF from the secondary base, safety gap, bypass caps, and strike rail,
and the other for console grounding. It seems that the majority of the
more experienced coilers are connecting the core/case of their HV
transformers directly to the RF ground.
Perhaps I am missing something, but wouldn't this method introduce RF
into the transformer's primary windings, (after all, they are wound _on_
the core)? Of course a seperate ground for core/case could be used,
(with other grounds for RF and console, of course), but the two ground
method would alleviate some clutter. I am getting ready to make the
leap into a pole pig, and am currently designing the control and safety
circuitry which a large transformer (and resonator) requires.
I hope that someone can perhaps shed some light on how it can be
copacetic to tie the transformer core directly to the RF ground. Any
insights will be apppreciated.
Mike Rusher
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