Measurements and Instrumentation

Q1: In 3 phase power measurement by two wattmeter method, both wattmeters had equal reading. The power factor of load is

A 1

B 0.5 lagging

C 0.5 leading

D 0

ANS:A - 1

Readings of two wattmeters are same when σ = 0 or p.f. = 1.



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