Loose Leaf for Engineering Circuit Analysis Format: Loose-leaf
9th Edition
ISBN: 9781259989452
Author: Hayt
Publisher: Mcgraw Hill Publishers
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 11, Problem 56E
For the circuit of Fig. 11.50, assume the source operates at a frequency of 100 rad/s. (a) Determine the PF at which the source is operating. (b) Calculate the apparent power absorbed by each of the three passive elements. (c) Compute the average power supplied by the source. (d) Determine the Thévenin equivalent seen looking into the terminals marked a and b, and calculate the average power delivered to a 100 Ω resistor connected between the same terminals.
■ FIGURE 11.50
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
4) A three-phase air-conditioning unit which has 4 kW working power and PF of 0.85 draws 13.06 A.
What is the apparent power?
Apparent power =
5) A three-phase air-conditioning unit which has 4 kW working power and PF of 0.85 draws 13.06 A.
What is the peak current?
I
Peak current =
6). A #1/0 THW copper conductor is protected by a circuit breaker rated at 480 V, with a K-factor of 1.3
and clearing time of 2 cycles. What is the symmetrical short-circuit current?
Current =
7) An AC circuit has resistance of 9 02, inductive reactance of 5 02, and capacitive reactance of 2 Q. What
is the impedance?
Impedance =
Q2) A three phase load (motor) draws 30 kW when connected to 440 V rms, 50
Hz line if the power factor is 0.85 lagging, Determine:
a) The line current drawn by the motor.
b) The KVAR rating of the three capacitors - connected in parallel with the
motor that will raise the power factor to 0.95 lagging, and
c) The capacitance of each capacitor.
11.15 In the circuit of Fig. 11.46, find the value of Z, that
will absorb the maximum power and the value of the
maximum power.
120/0° V
192
wwwww
--/12
V./19
V₂
2V₂
ZL
Chapter 11 Solutions
Loose Leaf for Engineering Circuit Analysis Format: Loose-leaf
Ch. 11.1 - A current source of 12 cos 2000t A, a 200 ....Ch. 11.2 - Given the phasor voltage across an impedance ,...Ch. 11.2 - Prob. 3PCh. 11.2 - Prob. 4PCh. 11.2 - A voltage source vs is connected across a 4...Ch. 11.3 - If the 30 mH inductor of Example 11.7 is replaced...Ch. 11.4 - Calculate the effective value of each of the...Ch. 11.5 - For the circuit of Fig. 11.16, determine the power...Ch. 11.6 - Prob. 10PCh. 11 - Prob. 1E
Ch. 11 - Determine the power absorbed at t = 1.5 ms by each...Ch. 11 - Calculate the power absorbed at t = 0, t = 0+, and...Ch. 11 - Three elements are connected in parallel: a 1 k...Ch. 11 - Let is = 4u(t) A in the circuit of Fig. 11.28. (a)...Ch. 11 - Prob. 6ECh. 11 - Assuming no transients are present, calculate the...Ch. 11 - Prob. 8ECh. 11 - Prob. 9ECh. 11 - Prob. 10ECh. 11 - The phasor current I=915mA (corresponding to a...Ch. 11 - A phasor voltage V=10045V (the sinusoid operates...Ch. 11 - Prob. 13ECh. 11 - Prob. 14ECh. 11 - Find the average power for each element in the...Ch. 11 - (a) Calculate the average power absorbed by each...Ch. 11 - Prob. 17ECh. 11 - Prob. 18ECh. 11 - Prob. 19ECh. 11 - The circuit in Fig. 11.36 has a series resistance...Ch. 11 - Prob. 21ECh. 11 - Prob. 22ECh. 11 - Prob. 23ECh. 11 - Prob. 24ECh. 11 - Prob. 25ECh. 11 - Prob. 26ECh. 11 - Prob. 27ECh. 11 - Prob. 28ECh. 11 - Prob. 29ECh. 11 - Prob. 30ECh. 11 - Prob. 31ECh. 11 - Prob. 32ECh. 11 - Prob. 33ECh. 11 - (a) Calculate both the average and rms values of...Ch. 11 - Prob. 35ECh. 11 - FIGURE 11.43 Calculate the power factor of the...Ch. 11 - Prob. 37ECh. 11 - Prob. 38ECh. 11 - Prob. 40ECh. 11 - Prob. 41ECh. 11 - Prob. 42ECh. 11 - Prob. 43ECh. 11 - Compute the complex power S (in polar form) drawn...Ch. 11 - Calculate the apparent power, power factor, and...Ch. 11 - Prob. 46ECh. 11 - Prob. 48ECh. 11 - Prob. 49ECh. 11 - Prob. 50ECh. 11 - Prob. 51ECh. 11 - Prob. 52ECh. 11 - FIGURE 11.49 Instead of including a capacitor as...Ch. 11 - Prob. 54ECh. 11 - A load is drawing 10 A rms when connected to a...Ch. 11 - For the circuit of Fig. 11.50, assume the source...Ch. 11 - Prob. 57ECh. 11 - A source 45 sin 32t V is connected in series with...Ch. 11 - Prob. 60ECh. 11 - FIGURE 11.51 The circuit in Fig. 11.51 uses a Pi...Ch. 11 - Prob. 62ECh. 11 - Prob. 63ECh. 11 - You would like to maximize power transfer to a 50 ...
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.Similar questions
- The average load of a dairy plant at 11 kV, 50 Hz is 950 kW at 80 percent power factor but the maximum contract load of plant is 1200 kW. As per local electricity regulating authorities norms, consumer must keep the power factor of 95 percent to avoid any poor power factor penalty. Determine the following (i) Rating of capacitor bank (in kVAr) (ii) The capacitance of the capacitor bank (in micro Farad) (iii) Explain why the power factor becomes low and how the capacitor bank will assists to improve the power factor?arrow_forward1. The voltage source in the following figure (Fig. 11.44b) has the frequency limits shown. Calculate the circuit current and impedance values at the frequency limits of the source. 47 mH f=4 kHz to 11 kHz R • 3.3 ΚΩarrow_forwardCan you solve the question ?arrow_forward
- Section 11.8 Power Factor Correction 11.69 Refer to the circuit shown in Fig. 11.88. (a) What is the power factor? (b) What is the average power dissipated? (c) What is the value of the capacitance that will give a unity power factor when connected to the load? 120 V rms Z 10 +j122 60 Hzarrow_forwardThe maximum instantaneous voltage and current output of an alternator are 300 V and 20 A, respectively. What is the reactive power output in watts if the voltage leads the current by 30°? Ans: kVar 2.598arrow_forward.arrow_forward
- An alternating voltage is given by v = 278.6 sin 324t volts. Find the instantaneous value of voltage when t = 10ms. Two 650 mH coils have a coefficient of coupling equal to 0.45. Calculate the value of mutual inductance.arrow_forward11.51 For the entire circuit in Fig. 11.70, calculate: (a) the power factor (b) the average power delivered by the source (c) the reactive power (d) the apparent power (e) the complex power 50/50° V (+) Figure 11.70 For Prob. 11.51. 292 www ww -j5Q 10 92 ele j6 Ω 892arrow_forward1. An alternating voltage is given by V=230sin314t.Calculate i)frequency,ii)maximum value,iii)average value,iv)RMS valućarrow_forward
- A resistor of 10ohm and an inductor of 0.2 henry are connected in series and given a supply of 230 V, 50 Hz, then (i) Inductive reactance (ii) Impedance (iii) Current (iv) Power factor (v) True power (vi) Reactive power and (vii) find the apparent powerarrow_forwardFor the circuit of Fig. 11.50, assume the source operates at a frequency of 100 rad/s. (a) Determine the PF at which the source is operating. (b) Cal- culate the apparent power absorbed by each of the three passive elements. (c) Compute the average power supplied by the source. (d) Determine the Thévenin equivalent seen looking into the terminals marked a and b, and calculate the average power delivered to a 100 2 resistor connected between the same terminals. j60 92 ell FIGURE 11.50 w 50 2 5/0° A www 80 Ω 02 obarrow_forwardA 3-Φ, 5 KW induction motor has a p.f of 0.75 lagging. A bank of capacitors is connected in delta across the supply terminals and p.f raised to 0.9 lagging. Determine the KVAR rating of the capacitor connected in each phase. Also comment on the type of supplied KVAR, Whether it is unity, leading or lagging.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)Electrical EngineeringISBN:9780133923605Author:Robert L. BoylestadPublisher:PEARSON
Delmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage Learning
Programmable Logic ControllersElectrical EngineeringISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Fundamentals of Electric CircuitsElectrical EngineeringISBN:9780078028229Author:Charles K Alexander, Matthew SadikuPublisher:McGraw-Hill Education
Electric Circuits. (11th Edition)Electrical EngineeringISBN:9780134746968Author:James W. Nilsson, Susan RiedelPublisher:PEARSON
Engineering ElectromagneticsElectrical EngineeringISBN:9780078028151Author:Hayt, William H. (william Hart), Jr, BUCK, John A.Publisher:Mcgraw-hill Education,
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:PEARSON
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning
Programmable Logic Controllers
Electrical Engineering
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:9780078028229
Author:Charles K Alexander, Matthew Sadiku
Publisher:McGraw-Hill Education
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:9780134746968
Author:James W. Nilsson, Susan Riedel
Publisher:PEARSON
Engineering Electromagnetics
Electrical Engineering
ISBN:9780078028151
Author:Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:Mcgraw-hill Education,
Types of Energy for Kids - Renewable and Non-Renewable Energies; Author: Smile and Learn - English;https://www.youtube.com/watch?v=w16-Uems2Qo;License: Standard Youtube License