TAN δ (DELTA) Cable & Transformers testing (Theory)

[Kiriakos GR]

I am exploring curently all the theory behind those LCR meters, and even me I am full of questions which require answers.

In my hunting for info about Tan Delta, also called Loss Angle or Dissipation Factor testing, I did step over this document, which speaks about this principal over cable testing.

It does worth a read even if the document was made to serve the demonstration of an cable tester.

http://www.hvinc.com/downloads/Tan_Delta_FAQ.pdf

About transformers here.
http://www.eltelindustries.com/webadmin/pdfs/30042009105124585.pdf