Low power factor adjustment involves _________(a) adjusting the power factor at lower loads(b) applying rated voltage to pressure coil and a p.f. of 0.5 for current coil(c) only applying rated voltage to pressure coil(d) only a p.f. of 0.5 for the current coilThe question was posed to me during an internship interview.My doubt stems from Electronic Energy Meter, Adjustments in Single Phase Energy meters in portion Measurement of Power and Related Parameters of Electrical Measurements

Low power factor adjustment involves _________(a) adjusting the power

1.	Low power factor adjustment involves _________(a) adjusting the power factor at lower loads(b) applying rated voltage to pressure coil and a p.f. of 0.5 for current coil(c) only applying rated voltage to pressure coil(d) only a p.f. of 0.5 for the current coilThe question was posed to me during an internship interview.My doubt stems from Electronic Energy Meter, Adjustments in Single Phase Energy meters in portion Measurement of Power and Related Parameters of Electrical Measurements
Answer» The correct CHOICE is (b) applying rated voltage to pressure coil and a p.f. of 0.5 for current coil Best EXPLANATION: Rated voltage is applied to the pressure coil. The current coil is provided with a current at 0.5 p.f. lagging. TILL the disc rotates at correct speed, LAG device is ADJUSTED.

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