Electrical Science

Three Phase AC Circuits – Part 3

Power in Three-Phase Circuits, Power in Star Connection, Delta Connection, Solved Examples, Power in Unbalanced Loads, Measurement of Power in three Phase Circuits, Three-Wattmeter Method: This is the simplest and straightforward method, Two-Wattmeter Method: This can be used for any balanced or unbalanced load, star- or delta-connected. One-Wattmeter Method: This can be used only for a star-connected balanced load.Power Factor Measurement by Two-Wattmeter Method.

Lesson Intro Video

Three Phase AC Circuits – Part 2 (Prev Lesson)
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