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Pastimes : Dream Machine ( Build your own PC ) -- Ignore unavailable to you. Want to Upgrade?

To: Dan Duchardt who wrote (10111)1/31/2000 6:27:00 AM
From: PMS Witch  Respond to of 14778
 
Off topic -- capacitors ...

Your 2 Farad must have been a beauty. The Commander, in his early days, worked at repairing electrical motors after school. He'd test capacitors by connecting them to leads, plugging the thing into the wall outlet to charge it up, and shorting it with a screwdriver. A good one would put on quite a show of sparks, while a bad one wouldn't. A big one, about 250 microfarads would almost melt the screwdriver. Anyway, one day, one exploded on his bench while charging. After that, he lost some enthusiasm for testing them in this fashion.

Cheers, PW.



To: Dan Duchardt who wrote (10111)1/31/2000 11:23:00 AM
From: Howard R. Hansen  Respond to of 14778
 
If I might probe a little deeper into your original reply, the capacitor in PW's question would have been something near the output of the UPS, not a device to store the large amount of energy the UPS might have to deliver when the power fails.

I agree the capacitor in PW's question was not for storing the large amount of energy the UPS might have to deliver when the power fails but instead was for decreasing the VA, volt-amp, load on the UPS.


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