Scot, Yes, this lead is larger although I don't remember exactly howlarge. However, I believe the main reason that this HV tap lead is relatively large is more for mechanical strength and stiffness than
for current carrying capacity. And although the tap lead from the windings to the external bushing may be like #6 or #8, theactual high voltage windings of a 10 kVA transformer itself are more like #20 or #22!
David----- Original Message ----- From: "bunnykiller" <bunnikillr@xxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx> Sent: Monday, August 04, 2008 7:43 PM Subject: Re: [TCML] wire gage
Hey David...when you were setting up your piggie coil, did you by chance take a look inside the pig and notice the size of the wires leading to the "output" insulators? Its been a few years since I have opened mine up and I was trying to remember about what size the wires were... for some reason I want to think they were about a #6 in dia.Dr. Res... you deal alot with piggies... maybe you can recall the size seen in most 10KVA units...Scot D David Rieben wrote:Hi all, Yes, I agree with Gary here. The total volt-amps of a conductor hasno baring on the current only carrying capacity of a condutor. It's strict-ly a matter of amperage vs the cross-section and the conducting material that determines the required conductor size. That's why multiple mega- watts can be transported via a relatively conductors for hundreds of miles through power transmission lines. The ROC does become an issue with very high voltages and requires a certain size OD of the con- ductor to hold down corona losses. However, 10 amps current flow at 50 volts requires no more cross section of a given conductor than would 10 amps at 50,000 volts! David -_______________________________________________ Tesla mailing list Tesla@xxxxxxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla
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