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rent I, and I, with respect to the line voltage. 13 A single-phase motor draws a current of 16 A from a 240 V, 60 Hz line. A wattmeter connected into the line gives a reading of 2765 W. Calculate the power factor of the motor and the reactive power it absorbs.

rent I, and I, with respect to the line voltage. 13 A single-phase motor draws a current of 16 A from a 240 V, 60 Hz line. A wattmeter connected into the line gives a reading of 2765 W. Calculate the power factor of the motor and the reactive power it absorbs.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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AND APPARENT POWER 159 a. The reactive power absorbed by the reactor b. The apparent power absorbed by the reactor c. The peak power input to the reactor d. The peak power output of the reactor e. The duration of each positive power pulse 11 Using the rules given in Sections 16 and 17, determine which of the devices in Fig. 24a through 24f acts as an active (or reac- tive) power source. 12 xA single-phase motor draws a current of 12 A at a power factor of 60 percent. Calculate the in-phase and quadrature components of cur- rent I, and I, with respect to the line voltage. d. b. 13 A single-phase motor draws a current of 16 A from a 240 V, 60 Hz line. A wattmeter connected into the line gives a reading of 2765 W. Calculate the power factor of the motor and the reactive power it absorbs. If a capacitor having a reactance of 30 N is connected in parallel with the motor of Problem 13, calculate a. The active power reading of the wattmeter b. The total reactive power absorbed by the capacitor and motor c. The apparent power of the ac line d. The line current 14 e. The power factor of the motor/capacitor combination 15 Using only power triangle concepts (Section 14) and without drawing any pha- sor diagrams, find the impedance of the cir-
Transcribed Image Text:AND APPARENT POWER 159 a. The reactive power absorbed by the reactor b. The apparent power absorbed by the reactor c. The peak power input to the reactor d. The peak power output of the reactor e. The duration of each positive power pulse 11 Using the rules given in Sections 16 and 17, determine which of the devices in Fig. 24a through 24f acts as an active (or reac- tive) power source. 12 xA single-phase motor draws a current of 12 A at a power factor of 60 percent. Calculate the in-phase and quadrature components of cur- rent I, and I, with respect to the line voltage. d. b. 13 A single-phase motor draws a current of 16 A from a 240 V, 60 Hz line. A wattmeter connected into the line gives a reading of 2765 W. Calculate the power factor of the motor and the reactive power it absorbs. If a capacitor having a reactance of 30 N is connected in parallel with the motor of Problem 13, calculate a. The active power reading of the wattmeter b. The total reactive power absorbed by the capacitor and motor c. The apparent power of the ac line d. The line current 14 e. The power factor of the motor/capacitor combination 15 Using only power triangle concepts (Section 14) and without drawing any pha- sor diagrams, find the impedance of the cir-
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