Primary Tubing Rating

• To: tesla-at-pupman-dot-com
• Subject: Primary Tubing Rating
• From: "Jeff W. Parisse" <JParisse-at-DDLabs-dot-com>
• Date: Sun, 08 Sep 1996 14:12:02 -0700
• Cc: swan-at-d2-dot-com

All,

I just placed our CP cap order. We're getting a .05uf-at-20kV for the big coil 
and a .01uf-at-15kV for the small coil (for a total of $615 US ouch!).

On the big coil, the 1/16"x2" copper strap isn't long enough to resonate at 
the desired frequency (I can only get 6 turns) so we're going to rebuild 
the primary (too bad, I love that copper strap).

Our questions are...

What kVA values equate to copper pipe diameters?

eg: Is 1/4" dia. big enough for 3kVA?... What's the limiting factor, turn 
to turn flashover or current capacity? If we move to a pole pig will 1/4" 
be inadequate?

Thanks...   ...Jeff

DDLabs Tesla Group (formerly This Old Tesla Coil)

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