From: Paul
Date: Mon, 21 May 2001 11:10:15 +0100
Subject: Re: [TSSP] Genetic optimisation
Terrell W. Fritz wrote: > ... > Voltage stress plot: > http://hot-streamer.com/temp/MattD2.gif Very nice. Could you produce a variation on E-Tesla which, when *given* a V-profile generates the gradient plot as above, and then explores it to find the spot with the highest gradient, which we take to be the weakest link - the 'Robinson spot' perhaps :). Then by scaling the gradient of the Robinson spot up to the breakdown value of air, say 10kV/cm, we get the maximum top volts before breakout. > ... However, that is assuming the breakdown voltage is > the same at DC, 60Hz, and 350kHz. Indeed. You would be calculating the *static* breakdown voltage with no account of the rate of change, but its a start. Comparison with the tabulated results of Marc's proposed project would be interesting, and might reveal the extent to which dV/dt is a factor. > ... The question then is when does air initially breakdown at > say 300kHz? Pity Jim Lux isn't on this list - I'm sure he could provide some essential background to this discussion. Cheers, -- Paul Nicholson, Manchester, UK. --
Maintainer Paul Nicholson, paul@abelian.demon.co.uk.