The two pressure coils of a single phase power factor meter have the same dimensions and the same number of turns.
Answer : In a single phase power factor meter the phase difference between the currents in the two pressure coils is exactly 90°. ...
What is the power factor when a single phase watt meter operating on 200 V and 5 A for 5 hours makes 2016 revolutions and the meter constant in revolution is 420? A) 0.04 B) 1.04 C) 0.96 D) None of these Answer : What is the power factor when a single phase watt meter operating on 200 V and 5 A for 5 hours makes 2016 revolutions and the meter constant in revolution is 420? A) 0.04 B) 1.04 C) 0.96 D) None of these ...
Answer : The power factor of a single phase load can be calculated if the instruments available are three ammeters or three voltmeters. ...
Answer : In a dynamometer 3-phase power factor meter, the planes of the two moving coils are at 120°. ...
With a neat sketch explain working of 1 phase dynamometer type power factor meter. Answer : Working of 1 phase dynamometer type power factor meter : The current coil is connected in series with load. Two pressure coils marked as A and B are connected across the supply terminals ... becomes stationary and the pointer shows steady deflection corresponding to the power factor of the load. ...
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