9th Edition

ISBN: 9780078028151

Author: Hayt, William H. (william Hart), Jr, BUCK, John A.

Publisher: Mcgraw-hill Education,

Concept explainers

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 …

Videos

Textbook Question

Chapter 10, Problem 10.13P

The skin effect mechanism in transmission lines is responsible for the increase with frequency of the line resistance per meter. Specifically, resistance scales as the square root of frequency f according to R = A₀f^1/2 where A₀ is a constant. Consider a low-loss line in which the attenuation coefficient is approximated by Eq. (54a), the phase constant by the first term in (54b), and the characteristic impedance by Eq. (24). The conductance per unit length, G, is zero. The 50 − Ω line has a measured power Loss of 10.0 dB over a 100-m length at f = 100 MHz. (a) Find the value of A₀ and the line resistance per meter at 100 MHz. (b) At the line input, a 10-W power transmitter is attached. At the far end of the line, a 100 − Ω load impedance is attached. How much power is dissipated by the load at frequency 400 MHz?

Chapter 10, Problem 10.13P, The skin effect mechanism in transmission lines is responsible for the increase with frequency of

Figure 10.29 See Problem 10.15.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 10, Problem 10.12P

Chapter 10, Problem 10.14P

Students have asked these similar questions

Homework: The open-loop transfer function of DC Motor is shown in equations (1), where the rotational speed is considered as the output and the armature voltage as the input, (J) is the moment of inertia of the rotor, (b) is the viscous friction constant of the motor, (La) is the electrical inductance, (Ra) is the electrical resistance and (V) is the voltage source, with a setpoint of 2000 rpm e(s) K₁ G(s)=(s) = (j.s+b)(La.s+ Ra) + K₁ × Kɩ rad/sec, sec (1) Parameters Torque constant (Kt) Value Electromotive force constant (Kb) Electrical resistance (Ra) Viscous friction constant of the motor (b) 0.008 N.m/rad/s Electrical inductance (La) Moment of inertia of the rotor (J) 0.5 N.m/A 1.25 V/rad/s 502 0.2 H 0.1 kg.m² Table 1: Parameters of the DC motor Design Speed Control of DC Motor Using PID Controller, and then obtain Overshoot, Rise time, Steady state error, and Settling time

A. Explain the mode of operation for complementry commutation circuit. Find the circuit turn off time if the load resistances R1-R2-5 2 capacitance C-7.5 μF, V-100 volts. ng tu I

**3- In the following transistor amplifier circuit, assuming that:** **3-1- Calculate the operating point of the transistor (values of its continuous currents and voltages).** **3-2- Draw the equivalent circuit of the amplifier for small signals.** **3-3- Calculate the input resistance \( R_{in} \).**

Chapter 10 Solutions

Engineering Electromagnetics

Ch. 10 - The parameters of a certain transmission line...Ch. 10 - A sinusoidal wave on a transmission line is...Ch. 10 - Prob. 10.3P Ch. 10 - A sinusoidal voltage V0, frequency , and phase...Ch. 10 - Two voltage waves of equal amplitude V0 and radian...Ch. 10 - A 50 load is attached to a 50-m section of the...Ch. 10 - Prob. 10.7P Ch. 10 - An absolute measure of power is the dBm scale, in...Ch. 10 - A 100-m transmission line is used to propagate a...Ch. 10 - Two lossless transmission lines having different...

Ch. 10 - Two voltage waves of equal amplitude V0, which...Ch. 10 - In a circuit in which a sinusoidal voltage source...Ch. 10 - The skin effect mechanism in transmission lines is...Ch. 10 - A lossless transmission line having characteristic...Ch. 10 - Figure 10.29 See Problem 10.15. For the...Ch. 10 - A 100 lossless transmission line is connected to a...Ch. 10 - Determine the average power absorbed by each...Ch. 10 - The line shown in Figure 10.31 is lossless. Find s...Ch. 10 - A lossless transmission line is 50 cm in length...Ch. 10 - (a) Determine s on the transmission line of Figure...Ch. 10 - Prob. 10.21P Ch. 10 - Prob. 10.22P Ch. 10 - The normalized load on a lossless transmission...Ch. 10 - Prob. 10.24P Ch. 10 - Prob. 10.25P Ch. 10 - A 75 lossless line is of length 1.2 . It is...Ch. 10 - Prob. 10.27P Ch. 10 - The wavelength on a certain lossless line is 10...Ch. 10 - Prob. 10.29P Ch. 10 - A two-wire line constructed of lossless wire of...Ch. 10 - In order to compare the relative sharpness of the...Ch. 10 - In Figure 10.17, let ZL=250 and Z0=50. Find the...Ch. 10 - In Figure 10.17, let ZL=100+j150 and Z0=100. Find...Ch. 10 - The lossless line shown in Figure 10.35 is...Ch. 10 - Prob. 10.35P Ch. 10 - The two-wire lines shown in Figure 10.36 are all...Ch. 10 - Prob. 10.37P Ch. 10 - Repeat Problem 10.37, with, Z0=50 and RL=Rg=25....Ch. 10 - In the transmission line of Figure 10.20, Z0=50,...Ch. 10 - In the charged line of Figure 10.25, the...Ch. 10 - In the transmission line of Figure 10.37, the...Ch. 10 - Figure 10.38 See Problem 10.42. A simple frozen...Ch. 10 - Figure 10.39 See Problem 10.43. In Figure 10.39,...

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.

Solution Summary: The author calculates the value of A 0 and resistance per unit length for the given transmission line.

Concept explainers

Videos

Want to see the full answer?

Chapter 10 Solutions