6th Edition

ISBN: 9780078028229

Author: Charles K Alexander, Matthew Sadiku

Publisher: McGraw-Hill Education

Concept explainers

Alternating Current (AC) is a type of electric power in which the electric current changes, both in magnitude and direction, at regular intervals. This AC Circuits can deliver power in either a Single Phase system or a Three Phase system.

Videos

Textbook Question

Chapter 12, Problem 3RQ

Which of these is not a required condition for a balanced system:

(a) V a n = V b n = V c n
(b) I a + I b + I c = 0
(c) V a n + V b n + V c n = 0
(d) Source voltages are 120° out of phase with each other.
(e) Load impedances for the three phases are equal.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 12, Problem 2RQ

Chapter 12, Problem 4RQ

Students have asked these similar questions

Using Figure 1, Vs 50V-15 339 Hz R1 $1100 R2 100 www XL1 320 HH XC1 Figure 1 700 R3 600 13 R4 400 XL2 1902 XL3 450 XC2 650 a. Determine the total circuit impedance, ZT. b. Calculate current IT. c. Calculate currents I, and I3. State the value of these currents in both rectangular and polar form. d. For each of the currents determined in part c, answer the following: Is the current leading, lagging, or in phase with the source voltage. e. Use the voltage-divider rule to determine the voltages across XL1 and Xc2.

A 50 Hz high voltage Schering bridge is shown in the figure. The component parameters are as follows under balanced condition: Cs-150 microfarad, C2-0.677 microfarad, R2-634 ohm, and R1-168 ohm. Find the dissipation factor of the tested material. 220V rms Lütfen birini seçin 0.1340 b.0.1672 E0051 0.0.0749 e.0.1128 88888888 00000000 25 kV rms R R₁ R₂ II (C₂ 12²

For the circuit given in Figure 1, a) Find the Thevenin equivalent circuit with respect to terminals a-b b) When a 5000 resistor is connected to terminal a-b, find the voltage on the resistor wwwwwwmm c) It will be connected to a-b terminals and its voltage on 5000 load will be 132 kV rms. What should be the capacitive reactance value that will increase it? wwwwwwwww d) What happens to the short-circuit current when the a-b terminals are short-circuited? 2+1202 000 m da 127/6 kV rms ob 1.5 +/902 000 w 12725 kV ms

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...

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Which of these is not a required condition for a balanced system: (a) V a n = V b n = V c n (b) I a + I b + I c = 0 (c) V a n + V b n + V c n = 0 (d) Source voltages are 120° out of phase with each other. (e) Load impedances for the three phases are equal.

Solution Summary: The author explains the required conditions for a balanced three-phase system. The summation of all phase voltages is equal to zero.

Concept explainers

Videos

Want to see the full answer?

Chapter 12 Solutions