Example 20. Calculate the power drawn in acircuit given the following voltage and currentequations:v(t) = 100sin(wt +30°)- 50sin(3wt + 60°)+25sin(5wt) Voltsi(t) = 20sin(wt - 30°) + 15sin(3wt +30°)+10cos(5wt-60°) A(Ans:

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Answered: Example 20. Calculate the power drawn…

Engineering

Electrical Engineering

Example 20. Calculate the power drawn in a circuit given the following voltage and current equations:

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

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.8MCQ: An ac resistance is higher than a dc resistance. True False

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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

Example 20. Calculate the power drawn in a
circuit given the following voltage and current
equations:
v(t) = 100sin(wt +30°)- 50sin(3wt + 60°)
+25sin(5wt) Volts
i(t) = 20sin(wt - 30°) + 15sin(3wt +30°)
+10cos(5wt-60°) A
(Ans:

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