What voltage would be produced in a 480v 3-phase system when calculated with the square root of 3?

Prepare for the CWEA Electrical and Instrumentation Grade 2 Test. Strengthen your skills with interactive questions and detailed explanations. Ensure your success!

In a 480V 3-phase system, the phase voltage can be calculated by dividing the line voltage by the square root of 3. The formula used is:

Phase Voltage (V_phase) = Line Voltage (V_line) / √3

Given that the line voltage is 480V, the calculation would be:

V_phase = 480V / √3 ≈ 480V / 1.732 ≈ 277V

This calculated voltage of approximately 277V represents the phase voltage in a 3-phase system where the line voltage is 480V. Understanding this relationship is essential in electrical systems since it helps with proper sizing of equipment and ensuring safe and efficient operation. Thus, the answer that corresponds to this calculation is 277V.

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