How long for capacitors to discharge in a window a/c unit ?

To answer post #19: In many cases yes, but not always. As an example, machines that use reversing contactors may leave the start cap charged when powered down.
-M
 
markba633csi said:
To answer post #19: In many cases yes, but not always. As an example, machines that use reversing contactors may leave the start cap charged when powered down.
-M
Click to expand...
Agreed, but OP is asking about a window A/C unit.

Tom
 
Once the capacitor is discharged it would be a good idea to put a shorting strap on it. Already mentioned in this thread, but worth emphasizing because if not shorted, high voltage capacitors can RE charge to a significant fraction of the voltage they had stored on them. The internal dielectric gets polarized and will act a bit like a battery. Very high voltage capacitors can recharge themselves to lethal levels so for them it's not a nicety but a necessity to always put a shorting strap on them when not in use.
 
Yes indeed. It's sometimes called "dielectric relaxation" I think there's a wiki entry about it under "static electricity"
-M
There are room-sized caps at Los Alamos you wouldn't dare leave unshorted
 
markba633csi said:
Yes indeed. It's sometimes called "dielectric relaxation" I think there's a wiki entry about it under "static electricity"
-M
There are room-sized caps at Los Alamos you wouldn't dare leave unshorted
Click to expand...
imagine this one.....
www.researchgate.net

(PDF) Marx Bank Technology for the International linear collider

PDF | Diversified Technologies, Inc. (DTI) has developed a high power, solid-state Marx bank topology for the ILC modulators and power supplies that can... | Find, read and cite all the research you need on ResearchGate
www.researchgate.net www.researchgate.net
 
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