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# Phase to neutral equivalent math

1.  Junior Member
Join Date
Dec 2014
Location
Houston, TX
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11
Reputation ## Phase to neutral equivalent math

Make sure to calculate the line-line current first, then divide by sqrt(3) to get the phase to neutral equivalent.  Reply With Quote

2. Originally Posted by randyw8483 Make sure to calculate the line-line current first, then divide by sqrt(3) to get the phase to neutral equivalent.
The Acronym WIDE come in very handy for this. Split WIDE in half WI | DE where WI means in a Wye transformer configuration current(I) is equal between line and phase, and to transfer Line Voltage to phase voltage divide by sqrt(3).

Then DE (E means electromotive force measured in volts) means in a Delta transformer configuration voltage is equal between line and phase, and to transfer Line current to phase current divide by sqrt(3).  Reply With Quote

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