Loose Leaf for Engineering Circuit Analysis Format: Loose-leaf
9th Edition
ISBN: 9781259989452
Author: Hayt
Publisher: Mcgraw Hill Publishers
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Textbook Question
Chapter 4, Problem 16E
Using nodal analysis as appropriate, determine the current labeled i1 in the circuit of Fig. 4.46.
FIGURE 4.46
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2. Suppose
G₁(s) = (s+2)
G₂(s) = (s-3)
C(s)
Find the transfer function G(s):
for each of the following three configurations
R(s)
shown in Figure 1. Note (a) is a cascaded (series) system, (b) is a parallel system, and
(c) is a feedback (closed-loop) system.
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(c)
C(s)
R(s)
G₁(s)
G2(5)
G₁(s)
R(s)
C(s)
G2(s)
C(s)
R(s)
G₁(s)
G₂(s)
Figure 1
Determine the transformer's active power losses and primary voltage (Figure 1). The
busbar's voltage at the transformer's secondary side is 20.5 kV. Load P is 6 MW, and the
power factor is 0.95ind.
Select a short-circuit withstanding (1-second short circuit length) cable for Feeder 1 in
Figure 1. Values for cables are given in Table 1. The voltage of the supplying network is
now 115 kV and the short-circuit power of the supplying network is 2000 MVA.
Table 1. Technical information of 3-phase cables (10 kV and 20 kV)
Product's name
EA-number
Structural information
20KV
20KV
20 KV
0624250
0624252
0624253
0624254
AHKAMK-W AHKAMKW AHKAMKWAHKAMKW AHKAMKW AHKAMKW AHKAMKW
3x50Al+35Cu 3x95 Al. 35Cu 3x120Al. 35Cu 3x150Al+35Cu 3x185Al+35Cu 3x240A1+70 Cu 3x300Al+70Cu
20kV
20kV 20 kV (8) 20KV
0624255
0624257
0624256
Diameter of conductor
Diameter of out-most circle
Cable's outer diameter
Mass
Delivery information
Standard length
Delivery reel
mm
8.0
11.3
12.7
14.1
15.7
18.1
20.3
mm
28
32
34
35
37
40
43
mm
64
71
74
76
80
89
94
aluminium
kg/km
510
910
1100
1350
1650
2200
2700
сорраг
kg/km
305
305
305
305
305
600
600
cable
kg/km
2350
3100
3450
3800
4300
5500
6250
E
500
500
500
500
500
500
500…
Chapter 4 Solutions
Loose Leaf for Engineering Circuit Analysis Format: Loose-leaf
Ch. 4.1 - For the circuit of Fig. 4.3, determine the nodal...Ch. 4.1 - For the circuit of Fig. 4.5, compute the voltage...Ch. 4.1 - For the circuit of Fig. 4.8, determine the nodal...Ch. 4.2 - For the circuit of Fig. 4.11, compute the voltage...Ch. 4.3 - Determine i1 and i2 in the circuit in Fig. 4.19....Ch. 4.3 - Determine i1 and i2 in the circuit of Fig 4.21....Ch. 4.3 - Determine i1 in the circuit of Fig. 4.24 if the...Ch. 4.4 - Determine the current i1 in the circuit of Fig....Ch. 4.4 - Determine v3 in the circuit of Fig. 4.28. FIGURE...Ch. 4 - Solve the following systems of equations: (a) 2v2 ...
Ch. 4 - (a) Solve the following system of equations:...Ch. 4 - (a) Solve the following system of equations:...Ch. 4 - Correct (and verify by running) the following...Ch. 4 - In the circuit of Fig. 4.35, determine the current...Ch. 4 - Calculate the power dissipated in the 1 resistor...Ch. 4 - For the circuit in Fig. 4.37, determine the value...Ch. 4 - With the assistance of nodal analysis, determine...Ch. 4 - Prob. 9ECh. 4 - For the circuit of Fig. 4.40, determine the value...Ch. 4 - Use nodal analysis to find vP in the circuit shown...Ch. 4 - Prob. 12ECh. 4 - Prob. 13ECh. 4 - Determine a numerical value for each nodal voltage...Ch. 4 - Prob. 15ECh. 4 - Using nodal analysis as appropriate, determine the...Ch. 4 - Prob. 17ECh. 4 - Determine the nodal voltages as labeled in Fig....Ch. 4 - Prob. 19ECh. 4 - Prob. 20ECh. 4 - Employing supernode/nodal analysis techniques as...Ch. 4 - Prob. 22ECh. 4 - Prob. 23ECh. 4 - Prob. 24ECh. 4 - Repeat Exercise 23 for the case where the 12 V...Ch. 4 - Prob. 26ECh. 4 - Prob. 27ECh. 4 - Determine the value of k that will result in vx...Ch. 4 - Prob. 29ECh. 4 - Prob. 30ECh. 4 - Prob. 31ECh. 4 - Determine the currents flowing out of the positive...Ch. 4 - Obtain numerical values for the two mesh currents...Ch. 4 - Use mesh analysis as appropriate to determine the...Ch. 4 - Prob. 35ECh. 4 - Prob. 36ECh. 4 - Find the unknown voltage vx in the circuit in Fig....Ch. 4 - Prob. 38ECh. 4 - Prob. 39ECh. 4 - Determine the power dissipated in the 4 resistor...Ch. 4 - (a) Employ mesh analysis to determine the power...Ch. 4 - Define three clockwise mesh currents for the...Ch. 4 - Prob. 43ECh. 4 - Prob. 44ECh. 4 - Prob. 45ECh. 4 - Prob. 46ECh. 4 - Prob. 47ECh. 4 - Prob. 48ECh. 4 - Prob. 49ECh. 4 - Prob. 50ECh. 4 - Prob. 51ECh. 4 - Prob. 52ECh. 4 - For the circuit represented schematically in Fig....Ch. 4 - The circuit of Fig. 4.80 is modified such that the...Ch. 4 - The circuit of Fig. 4.81 contains three sources....Ch. 4 - Solve for the voltage vx as labeled in the circuit...Ch. 4 - Consider the five-source circuit of Fig. 4.83....Ch. 4 - Replace the dependent voltage source in the...Ch. 4 - After studying the circuit of Fig. 4.84, determine...Ch. 4 - Prob. 60ECh. 4 - Employ LTspice (or similar CAD tool) to verify the...Ch. 4 - Employ LTspice (or similar CAD tool) to verify the...Ch. 4 - Employ LTspice (or similar CAD tool) to verify the...Ch. 4 - Verify numerical values for each nodal voltage in...Ch. 4 - Prob. 65ECh. 4 - Prob. 66ECh. 4 - Prob. 67ECh. 4 - Prob. 68ECh. 4 - Prob. 69ECh. 4 - (a) Under what circumstances does the presence of...Ch. 4 - Referring to Fig. 4.88, (a) determine whether...Ch. 4 - Consider the LED circuit containing a red, green,...Ch. 4 - The LED circuit in Fig. 4.89 is used to mix colors...Ch. 4 - A light-sensing circuit is in Fig. 4.90, including...Ch. 4 - Use SPICE to analyze the circuit in Exercise 74 by...
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- A three-phase 20 kV medium-voltage line is 10 km. Resistance is 0.252 2/km and reactance is 0.128 92/km (inductive). Voltage at the beginning of line is 21.0 kV. At the end of the line is loading P = 2.5 MW with power factor 0.92ind. Draw 1-phase equivalent diagram and calculate line voltage at the end the of line, active and reactive power at the beginning of the line and power losses of the line.arrow_forwardA three-phase 20 kV medium-voltage line is 10 km. Resistance is 0.365 2/km and reactance is 0.363 2/km (inductive). Voltage at the beginning of line is 20.5 kV. At the end of the line is loading P= 800 kW with power factor 0.95ind. Draw 1-phase equivalent diagram and calculate load current, line voltage at the end the of line, voltage drop and power losses of the line.arrow_forward6. Answer the following questions. Take help from ChatGPT to answer these questions (if you need). Write the answers briefly using your own words with no more than two sentences, and make sure you check whether ChatGPT is giving you the appropriate answers in our context. A) What is a model in our context? B) What is an LTI system? C) What are the three forms of model we have used in the class so far to represent an LTI system? Among the above three forms, which forms can still be used to represent a nonlinear system?arrow_forward
- 5. Consider the following block diagram of a system in the Figure 4. Y₁(s) G₁ G2. R(s) C(s) Y₂(s) G3 G4 Figure 4 The models of the blocks G1, G2, G3 and G4 are represented by a differential equation, transfer function, state-space form, and impulse response as the followings. dy1 G₁: +2y₁ = 3r(t) dt 1 G2: G₂(s) = S+3 G3: x=2x+r, y2=3x-r G4: h(t)=8(t) + et 1(t) Find the simplified expression of the overall transfer function of the system i.e., G(s) = Note for G3 block, you may need to use the formula H(s) = C (sI - A)-¹ B+ D. C(s) R(s)arrow_forward4. Simplify the block diagram in Figure 3 and find the closed-loop transfer function G(s) = C(s) R(s) G₁ R(s) Figure 3 C(s) G2 H₁ H₂arrow_forward1. Consider a system defined by the following state-space equations. -5 2 N-MAN-G = 3 -1 y = [12] Find the transfer function H(s) = x1 x2. Y(s) U(s)' + 5arrow_forward
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