110 vs 220


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Old 07-17-03, 10:00 PM
Deano
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110 vs 220

It's been hinted at in the forum but I don't think anyone has asked it out right: what are the advantages of running home shop equipment on 220 vs 110?
 
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Old 07-18-03, 04:13 AM
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Deano,

This isn't the technical answer but - for motors that can be re-wired for 220, they run less hot, are more efficient, and will generally last longer.

fred
 
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Old 07-18-03, 04:29 AM
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The only reason I know is lower voltage drop for long runs of wire. I don't think tou'll find efficiency of the motor much different
 
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Old 07-18-03, 05:16 AM
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You're prob right Ron.

I should have said longevity!

fred
 
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Old 07-18-03, 06:18 AM
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And maybe to reduce voltage drop on the electrical system especially on starts. Especially where the service entrance is marginal. Helps a bit in balancing load in the panel. But like Ron eluded to most of the time it probably isnt an issue unless the motors are large. Thats another reason to use it when the wiring at 120V wont run it due to the size.
 
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Old 07-18-03, 09:14 AM
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Higher voltage, lower amperage. A 1 HP motor for example is 16 amps at 110 volts, 8 amps at 220 volts. Smaller wire at 220v, but more of them. Smaller breaker size at 220v but it'll be a 2-pole breaker which is more expensive. Wattage is 1200 either way, so the cost of the electricity is the same. In other words, unless the motor is rather large it's a toss-up.

Juice
 
 

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