4 A How Can A Two Wattmeter Method Measure The Power In Three Phase Circuit Derive The Total Power With Necessary Di 1 (31.59 KiB) Viewed 33 times
4. (a) How can a two-wattmeter method measure the power in three phase circuit? Derive the total power with necessary diagrams. (3)
(b) A symmetrical three-phase 440 V system supplies a balanced delta-connected load. The branch current is 15 A at a phase angle of 35º, lagging. Find (i) the line current (ii) total active power and (iii) total reactive power. (2)
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