In a balanced three-phase system, the phase EMFs differ by what angle?

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Multiple Choice

In a balanced three-phase system, the phase EMFs differ by what angle?

Explanation:
In a balanced three-phase system, the three EMFs are produced by windings that are spaced evenly around the stator, so each phase reaches its peak a fixed amount of electrical angle after the previous one. This results in three phasors of equal magnitude separated by 120 electrical degrees. That 120° separation keeps the voltages balanced and the power flow steady over time. Angles like 60°, 90°, or 180° would disrupt that symmetry and balance, leading to uneven voltages or power delivery.

In a balanced three-phase system, the three EMFs are produced by windings that are spaced evenly around the stator, so each phase reaches its peak a fixed amount of electrical angle after the previous one. This results in three phasors of equal magnitude separated by 120 electrical degrees. That 120° separation keeps the voltages balanced and the power flow steady over time. Angles like 60°, 90°, or 180° would disrupt that symmetry and balance, leading to uneven voltages or power delivery.

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