Transformer core

• To: tesla-at-pupman-dot-com
• Subject: Transformer core
• From: "Matt Behrend" <electronxlc-at-earthlink-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Tue, 05 Oct 1999 08:17:30 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Hi all,

I have a large transformer core that I want to wind for my inductive 
ballast - 13mH.  It must handle 3kVA without saturating, so could 
some of the transformer experts tell me if my core is large enough, 
and minimum number of turns required?

Overall dimensions are 7.5" x 6.25" x 2.5"
cross sectional area 1.25" x 2.5" on perimeter sides and 2.5" x 
2.5" in center leg of the El  shape.

This is from a 1kVA Topaz isolation transformer, but the size of the 
core seems like it can take much more power.

Matt Behrend

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