480 Voltage To 200 Amps - Electrical - DIY Chatroom Home Improvement Forum

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Old 07-31-2007, 10:18 PM   #1
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480 voltage to 200 amps

If someone can help me. I have a business and have been told 10 different things by different electricians. I have 100 amp service comming into my building with 480 volts and then running through a 480 3 phase transformer.
Does that mean or is it possible to turn that 100 amps into 200 amps? Thanks if you can give me any info.


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Old 08-01-2007, 05:48 AM   #2
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480 voltage to 200 amps

480v x 100 amps x 1.73 = 83,040 VA.

83,040 VA / 208v / 1.73 = 230.76 amps at 208/120v 3 phase

I am assuming a 3 phase system, stepped down from 480 3 ph to 208/120 3 ph.


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