In a three phase supply driving a load, what is the minimum number of single phase watt meters required to measure the power and power factor?

In a three phase supply driving a load, what is the minimum number of

1.	In a three phase supply driving a load, what is the minimum number of single phase watt meters required to measure the power and power factor?
A.	One
B.	Two
C.	Three
D.	Four
Answer» C. Three

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In a three phase supply driving a load, what is the minimum number of single phase watt meters required to measure the power and power factor?

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