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AC Circuit Analysis - Vol 4 - 3-Phase Circuits, Part 1
01 - What is 3-Phase Power? Three Phase Electricity Tutorial
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Here we learn about the concept of 3-Phase Power in AC Circuit Analysis. We discuss the concept of separate phases in a three phase circuit, and how the phases are arranged to make the circuit balanced.
We discuss why 3-phase power is useful, and how the transmission line connects the three phase source to the load in a practical circuit. We also use phasor diagrams to label each phase of the current and voltage.