In message
<by2pr02mb16401e5e1473d4c827e671808a...@by2pr02mb1640.namprd02.prod.outlo
ok.com>, dated Fri, 12 Jun 2015, Carpentier Kristiaan
<[email protected]> writes:
I still don?t understand if the smaller capacitor with 2 points breaks
down, then a current should flow (I think that?s the definition or
result of ?breaking down?) but if the larger capacitor with 2 planes
still did not break down, then there can be no current flowing.
Remember that neither the resistance or the capacitive reactance of the
understressed insulation is infinite, so a small initial current can
always flow. The breakdown causes electrons to be detached from atoms
(by different mechanisms in different materials) to form a conducting
cloud. The voltage across the overstressed insulation drops to a low
value and nearly all the voltage appears across what was the
understressed insulation, considerably increasing the current, and
breakdown of that insulation occurs.
--
OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk
When I turn my back on the sun, it's to look for a rainbow
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
-
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