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If these are the exact voltages that you need you will need an auto transformer to obtain these voltages. If these voltages are nominal voltages and are of a three phase four wire configuration, the 220 voltage can be obtained from the three phase legs to the neutral (ground) connection. The equation to use is 400/1.73 = 231 volts.

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10y ago

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One method is to use an auto transformer and use the 220 volt tap.

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14y ago
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With a transformer or motor/generator set.

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14y ago
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Use a step down transformer with a turn ratio of 2:1.

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12y ago
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Use a step down transformer.

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16y ago
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by using a step down transformer

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13y ago
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By using a suitable transformer

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7y ago
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Q: How do i convert from 380 volts to 220 volts?
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How do you convert 3 phase star configuration 380 volts supply into 220 volts supply?

The process of obtaining 220 volts from 380 volts is quite simple. 380 volts is a three phase four wire system voltage. The 220 volts is obtained by taking the sq. root of 3 which equals 1.73 and dividing it into the phase voltage. 380/1.73 = 220 volts. This holds true with any three phase four wire voltage system. 208/1.73 = 120 volts, 415/1.73 = 230 volts, 480/1.73 = 277 volts and 600/1.73 = 347 volts. This lower voltage is present on any of the three phase legs of the three phase system to the neutral which is grounded on a wye connection.


How connect a transformer 380 volt 3 pH to 220 volt mono pH?

any one of the three line to neutral is 220 volts


How do you get a 220 volt single phase from 380 volt 3phase synchrounos generator?

220 volt single phase from 480 volt 3 phase that one wire taken one phase and second wire connected in earth point. we get 220 v The above answer is incorrect, one phase from a three phase 480 volt system will give you 277 volts to ground. You must use a transformer to get the voltage you need.


If a sine wave has a peak value of 220 volts what is the route means square value?

If the Peak to neutral voltage is 220 volts, the root mean square voltage is 155.6 volts (sqrt(220)).


How do you convert 230v single phase stove from England to 220v Canadian voltage?

You should be able to use it as is (assuming the plug matches your outlet). It will just run a little bit cooler at 220 volts vs. 230 volts.