Unity power factor means that the real power consumed by the load is equal to the apparent power delivered. In AC circuits, this occurs when the impedance of the load is purely resistive, meaning the reactive component (inductive or capacitive) is zero.
An alternator is delivering power to a balanced load at unity power factor. The phase angle between the line voltage and the line current is
Asked in GS&EI ElectEngg 14 2024 1601 2025 · Topic: Electric Current (Electrical Power and Energy, Joule heating effect)
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