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Post by arkie on Jul 28, 2017 21:33:27 GMT -5
Sooooo today I was given a pallet of industrial grade 3 phase capacitors. Anyone got any ideas on what I can use them for? And yes I've already thought of Jurassic parks electric fence. I'm hoping to be able to use them as storage for an off grid electric system. any advice would be helpful.
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Post by lostforawhile on Jul 28, 2017 22:06:02 GMT -5
depends on their capacity, if they are something that is used in motor starting etc, they won't have much storage capacity it doesn't take many micro farads to start a motor
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Post by lostforawhile on Jul 28, 2017 22:06:35 GMT -5
best bet is get the info from them put them on ebay if they are good
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Post by arkie on Jul 29, 2017 6:23:16 GMT -5
These are for a capacitor bank, not the little ones for motor starting.
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Post by lostforawhile on Jul 29, 2017 10:48:04 GMT -5
www.youtube.com/watch?v=wAh-xgATrWw capacitors are not meant to store large amounts of energy like a battery, but to rapidly charge and discharge , as far as using them for an off grid electrical system they are not designed for that type of use, you need batteries, you also can't store AC but only DC and you have to invert to AC from the batteries
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Post by arkie on Jul 29, 2017 17:52:18 GMT -5
Ummmmmm, yeah found a new use for them. They seem to go for about $200 each on ebay. So yeah.
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Post by 2stroked on Aug 4, 2017 19:38:25 GMT -5
Two words: Rail Gun!!!
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Post by 2stroked on Aug 4, 2017 20:22:20 GMT -5
www.youtube.com/watch?v=wAh-xgATrWw capacitors are not meant to store large amounts of energy like a battery, but to rapidly charge and discharge , as far as using them for an off grid electrical system they are not designed for that type of use, you need batteries, you also can't store AC but only DC and you have to invert to AC from the batteries Never understood that. You can only store DC in a cap. True. But a big motor start cap ( AC unit/ Air compressor) can knock the sh!it outta you, and it damn sure feels like AC. |
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Post by lostforawhile on Aug 4, 2017 20:31:11 GMT -5
It's only storing half the waveform as DC
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Post by 2stroked on Aug 4, 2017 21:24:33 GMT -5
Oh yeah, maybe I worded myself incorrectly. I just meant that at full charge, being hit by a can cap feels like grabbing a live house wire. And the little bastards usually have extra metal tabs and are hidden in an area where I stupidly stick my hand and brush those contacts against the backside of my hand.
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Post by FrankenMech on Aug 10, 2017 0:38:15 GMT -5
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