Electric Machinery and Power System Fundamentals

1st Edition

ISBN: 9780072291353

Author: Stephen J. Chapman, Stepehn J. Chapman

Publisher: McGraw-Hill Companies, The

See similar textbooks

Concept explainers

Type of Magnetic Material

Every material has a unique composition that defines its magnetic behavior. Some materials get attracted towards a magnet and are called magnetic materials. Based on the magnetic properties held by each material, they are classified into different types.

Videos

Textbook Question

Chapter 1, Problem 1.6P

A ferromagnetic core with a relative permeability of 1500 is shown in Figure P 1-3. The dimensions are as shown in the diagram, and the depth of the core is 5 cm. The air gaps on the left and right sides of the core are 0.050 and 0.070 cm, respectively. Because of fringing effects, the effective area of the air gaps is 5 percent larger than their physical size. If there are 300 turns in the coil wrapped around the center leg of the core and if the current in the coil is 1.0 A, what are the flux values for the left, center, and right legs of the core? What is the flux density in each air gap?

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 1, Problem 1.5P

Chapter 1, Problem 1.7P

Students have asked these similar questions

Q5: Given the following system: น -3 y= [4 -2] +3u Generate a model with states that are the sum and difference of the original states.

Find the state transition matrix. for the system whose simulation diagram is shown below: Uz x2 K 3 K=16

Q3: Find the state-space representation for the system given by:- + 16 + ၃- တိုင်း၍ရား +

Chapter 1 Solutions

Electric Machinery and Power System Fundamentals

Ch. 1 - What is torque? What role does torque play in the...Ch. 1 - What is Amperes law?Ch. 1 - What is magnetizing intensity? What is magnetic...Ch. 1 - How does the magnetic circuit concept aid in the...Ch. 1 - What is reluctance?Ch. 1 - What is a ferromagnetic material? Why is the...Ch. 1 - How does the relative permeability of a...Ch. 1 - Prob. 1.8Q Ch. 1 - What are eddy current losses? What can be done to...Ch. 1 - Why are all cores exposed to ac flux variations...

Ch. 1 - What is Faraday law?Ch. 1 - What conditions are necessary for a magnetic field...Ch. 1 - What conditions are necessary for a magnetic field...Ch. 1 - Prob. 1.14Q Ch. 1 - The linear machine in Figure 1-19 is running at...Ch. 1 - Just how does a decrease in flux produce an...Ch. 1 - Will current be leading or lagging voltage in an...Ch. 1 - What are real, reactive, and apparent power? What...Ch. 1 - What is power factor?Ch. 1 - Prob. 1.1P Ch. 1 - A flywheel with a moment of inertia of 4kgm2 is...Ch. 1 - A force of 10 N is applied to a cylinder of radius...Ch. 1 - A motor is supplying 50Nm of torque to its load....Ch. 1 - A ferromagnetic core is shown in Figure P1-2. The...Ch. 1 - A ferromagnetic core with a relative permeability...Ch. 1 - A two-legged core is shown in Figure P1-4. The...Ch. 1 - A core with three legs is shown in Figure P1-5....Ch. 1 - A two-legged core is shown in Figure P1-4. The...Ch. 1 - A wire is shown in Figure P1-7 that is moving in...Ch. 1 - Repeat Problem 1-10 for the wire in Figure P1-8.Ch. 1 - Prob. 1.12P Ch. 1 - A core with three legs is shown in Figure P1-10....Ch. 1 - A two-legged magnetic core with an air gap is...Ch. 1 - A transformer core with an effective mean path...Ch. 1 - The core shown in Figure P1-2 has the flux shown...Ch. 1 - Prob. 1.17P Ch. 1 - Prob. 1.18P Ch. 1 - Prob. 1.19P Ch. 1 - Demonstrate that Equation (1-59) can be derived...Ch. 1 - Prob. 1.21P Ch. 1 - Prob. 1.22P Ch. 1 - For the linear machine of Problem 1-22: When this...

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.