6th Edition

ISBN: 9780078028229

Author: Charles K Alexander, Matthew Sadiku

Publisher: McGraw-Hill Education

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A short transmission line is a transmission line that has a length less than 80 kilometers, an operating voltage level of less than 20 kV, and zero capacitance effect.

Power Flow Analysis

Power flow analysis is a topic in power engineering. It is the flow of electric power in a system. The power flow analysis is preliminary used for the various components of Alternating Current (AC) power, such as the voltage, current, real power, reactiv…

Complex Form

A power system is defined as the connection or network of the various components that convert the non-electrical energy into the electric form and supply the electric form of energy from the source to the load. The power system is an important parameter …

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Textbook Question

Chapter 12, Problem 27P

A ∆-connected source supplies power to a Y-connected load in a three-phase balanced system. Given that the line impedance is 2 + j 1 Ω per phase while the load impedance is 6 + j 4 Ω per phase, find the magnitude of the line voltage at the load. Assume the source phase voltage Chapter 12, Problem 27P, A -connected source supplies power to a Y-connected load in a three-phase balanced system. Given .

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Chapter 12, Problem 26P

Chapter 12, Problem 28P

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A three-phase line feeds two balanced three-phase loads connected in parallel. The first Y load consumes a total of 630,000 W at 0.6 power factor lagging. The second in Δ it has an impedance per phase of 46.08 – j 13.44 Ω. The line-to-line voltage at the end of the loads corresponds to 6920 Vrms, negative sequence. Find the total line current and power total complex absorbed by the two-charge system.

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Chapter 12 Solutions

Fundamentals of Electric Circuits

Ch. 12.2 - Given that Vbn=22030V, find Van and Vcn, assuming...Ch. 12.3 - A Y-connected balanced three-phase generator with...Ch. 12.4 - One line voltage of a balanced Y-connected source...Ch. 12.5 - A positive-sequence, balanced -connected source...Ch. 12.6 - In a balanced -Y circuit, Vab=44015 and ZY = (12 +...Ch. 12.7 - For the Y-Y circuit in Practice Prob. 12.2,...Ch. 12.7 - Calculate the line current required for a 30-kW...Ch. 12.7 - Assume that the two balanced loads in Fig....Ch. 12.8 - The unbalanced -load of Fig. 12.24 is supplied by...Ch. 12.8 - Find the line currents in the unbalanced...

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A ∆-connected source supplies power to a Y-connected load in a three-phase balanced system. Given that the line impedance is 2 + j 1 Ω per phase while the load impedance is 6 + j 4 Ω per phase, find the magnitude of the line voltage at the load. Assume the source phase voltage .

Solution Summary: The author explains the magnitude of the line voltage at the load. The delta connected source phase voltage is 208angle 0°.

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Chapter 12 Solutions