From: Paul
Date: Wed, 23 Oct 2002 11:16:27 +0100
Subject: Re: [TSSP] Top Voltage
Bert wrote: > Dr. J. R. Lucas...he's quite a prolific author! Indeed. http://www.elect.mrt.ac.lk/lucas.htm > http://elect.mrt.ac.lk/pdf_notes.htm Lots of EE101 and EE201 undergrad docs if anyone wants to brush up on the basics. Interesting to read about the various time lags, we've got the 'statistical lag' while we wait for a seed electron to come by, followed by a 'formative lag' during which avalanches develop. I see we have three voltages to worry about, in ascending order of volts, a) DCV: disruptive critical voltage, b) COV: visual corona onset voltage, c) BV: breakdown voltage, and I guess it's the DCV that corresponds to 30kV/cm. I think perhaps Terry is only registering the last one on OLTC. The stuff about conditions for stable corona is very interesting (chapter 1, page 20). We might be able to use this to construct a model. We can try to model the virtual growth of the terminal electrode until it reaches the point where corona is no longer stable, ie further increase in corona causes enhanced rather than reduced field, so at that point presumably streamer/leader development follows rapidly. -- Paul Nicholson, --
Maintainer Paul Nicholson, paul@abelian.demon.co.uk.