Electrical and Electronics Measurements Measurement of Power Measurement of Poly Phase Power

Measurement of power of a 3-phase balanced load is done using two wattmeter method. If the ratio of the wattmeter readings is 2 : 1 then power factor of the circuit will be:

1

0.0

2

1.0

3

0.5

4

0.866

5

0.707

5

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