For a wye-connected three-phase system the line voltage is higher than phase voltage by a factor of 1.732.

Question

Quizplus · Accepted Answer

This is correct. In a wye (Y)-connected three-phase system, the line voltage (VL) is equal to the square root of 3 times the phase voltage (VP), so VL = VP x √3, or VP = VL ÷ √3. Therefore, the line voltage is higher than the phase voltage by a factor of 1.732 (which is the square root of 3).

For a Wye-Connected Three-Phase System the Line Voltage Is Higher