an ac motor is connected to a 560-v, 60-hz line. the motor has a current draw at full load of 53 a. a wattmeter indicates a true power of 18,700 w. find the power factor of the motor and the amount of capacitance that should be connected in parallel with the motor to correct the power factor to 100%, or unity. pf

Respuesta :

The power factor of the motor and the amount of capacitance is 195 μF.

A capacitor is a device that stores electric strength in an electric-powered discipline by using the virtue of accumulating electric costs on near surfaces insulated from each other. it's miles a passive digital thing with terminals.

The effect of a capacitor is referred to as capacitance. The capacitor is a part that has the capacity or “ability” to save strength inside the form of an electrical price producing a potential difference (Static Voltage) across its plates, similar to a small rechargeable battery.

Calculation:-

P = 18700

Q₂ = 29049.34

S = 29680

Q₂ = v²ωc

29049.34  = (560)² × ( 2π × 60 )

C = 1.95 × 10⁻⁴

  C  = 195 μF

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