MATHEMATICAL ANALYSIS OF WATER EFFECTS
MATHEMATICAL ANALYSIS OF WATER EFFECTS
(OP)
I am curious to see how we would mathematically treat the effects that water would have on current carrying conductors.
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MATHEMATICAL ANALYSIS OF WATER EFFECTS
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RE: MATHEMATICAL ANALYSIS OF WATER EFFECTS
RE: MATHEMATICAL ANALYSIS OF WATER EFFECTS
RE: MATHEMATICAL ANALYSIS OF WATER EFFECTS
For what it's worth, there is a graph of insulation resistance for one generator both dry and wet at:
http://www.usbr.gov/power/data/fist/fist3~1/3~1_f2.htm
For older thermoplastic organic insulation systems (asphaltic), the insulation itself absorbs moisture which affects the bulk conductivity... so you have to consider both volume-leakage and surface leakage.
For newer thermosetting synthetic insulation (epoxy and polyester resins) systems, moisture does not much absorb into the bulk of the insulation, and surface leakage would be the primary effect (although the presence of any surface leakage during a dc test depends on the presence of a weakness in the bulk winding at some point... perhaps scarf joints in end winding area).
Sorry, that's just my thoughts, and not much to go on. Anyone else?