A residential electric power monitoring system ratedfor 120-V rms, 60-Hz source registers powerconsumption of 1.2 kW, with a power factor of 0.8.Finda. The rms current.b. The phase angle.c. The system impedance.d. The system resistance.

A residential electric power monitoring system ratedfor 120-V rms, 60-Hz source registers powerconsumption of 1.2 kW, with a power factor of 0.8.Finda. The rms current.b. The phase angle.c. The system impedance.d. The system resistance.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.3P: The instantaneous voltage across a circuit element is v(t)=400sin(t+30)volts, and the instantaneous...

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Concept explainers

HVDC

HVDC stands for high voltage direct current in the electric power transmission system. The high voltage direct current system uses direct current (DC) for the transmission of electrical power through transmission lines in contrast with the alternating current that is the AC system. The HVDC is used to transmit bulk power point-to-point through long distances transmission lines. Power is rapidly transferred because the efficiency of transmission lines is greatly increased over long distances due to HVDC lines.

Question

A residential electric power monitoring system rated
for 120-V rms, 60-Hz source registers power
consumption of 1.2 kW, with a power factor of 0.8.
Find
a. The rms current.
b. The phase angle.
c. The system impedance.
d. The system resistance.

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