Electric Motor Control
10th Edition
ISBN: 9781305177611
Author: Herman
Publisher: Cengage
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Chapter 40, Problem 6SQ
To determine
Explain the procedure to be followed when the synchronization attempt is failed.
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In the circuit shown, let R₁=7, R₂=12, R3=24, R4-2, V₁ =26, V2=104, and V3-78, to calculate the
power delivered (or absorbed) by the circuit inside the box, as follows:
{NOTE: On Multiple Choice Questions, like this problem, you have only one attempt }
1. The current I is equal to (choose the closed values in amperes)
O 1.156
-1.156
-1.209
-4.622
1.209
0
(A)
4.622
2. The power delivered (or absorbed) (choose the closest value in watts) (W)
-873.292
152.225
O 873.292
-122.181
-58.086
0
O 122.181
R₁
ww
V₂
R₂
R3
V1
ww
R4
√3
For the circuit shown, find the currents 11, 12, 16 and 17, given 13 =1 A, 14-19 A, 15 =-10 A, and Ig =5 A.
=
(A)
12
=
(A)
16 =
(A)
175
(A)
(Based on Alexander Textbook, Chapter2)
I5
12
14
18
13
16
• Round your values to 3-significant digits.
In the circuit shown, let R₁=62, R2=39, R3=16, R4-7 and V5-194, to calculate Vo and lo, as follows:
V₁
R1
R3
Find the overall current i delivered by the voltage source Vs:
• Find the voltage Vo:
• Find the current l₁ :
The relative tolerance for this problem is 7 %.
(V)
(A)
www.
R₂
+
RA
(A)
Chapter 40 Solutions
Electric Motor Control
Ch. 40 - What are the two basic functions of synchronous...Ch. 40 - Prob. 2SQCh. 40 - If all of the control circuits are ACand DC is not...Ch. 40 - When the rotor and stator fields lock into step,...Ch. 40 - Prob. 5SQCh. 40 - Prob. 6SQCh. 40 - In Figure 402, approximately what is the...Ch. 40 - Why are the AC ammeter and DC meter necessary in...Ch. 40 - Prob. 9SQ
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- An elliptically polarized wave traveling in the negative z-direction is received by a circularly polarized antenna. The vector describing the polarization of the incident wave is given by Ei= 2ax + jay .Find the polarization loss factor PLF (dimensionless and in dB) when the wave that would be transmitted by the antenna is (a) right-hand CP (b) left-hand CP.arrow_forwardFind V show all stepsarrow_forwardA wave radiated by an antenna is traveling in the outward radial direction along the +z axis. Its radiated field in the far zone region is described by its spherical components, and its polarization is right-hand (clockwise) circularly polarized. This radiated field impinging upon a receiving antenna whose polarization is also right-hand (clockwise) circularly polarized and whose polarization unit vector is represented by (ao-jas) E₁ = E(7,0,0) (0-100) Determine the polarization loss factor (PLF)arrow_forward
- Find V0, it's an ideal Op-amparrow_forwardFjjrjarrow_forwardHW_#1 HW_01.pdf EE 213-01 Assignments P Pearson MyLab and Mastering uah.instructure.com P Course Home Watch out for units (i.e, kQ, mA, etc), show all units on answers and clearly mark all answers 1)(5 pts) Specify if the following elements are absorbing or delivering power, and determine the amount of power being absorbed or delivered. 10 V + a) 5A + 5 V - b) 2A + 10 V -2A 2)(5 pts) Two circuits, shown by boxes A and B are connected as shown below. Use the current reference direction provided and the voltage reference polarity shown to determine the power for the interconnection. Also state the direction of power flow for the connection: form A to B or B to A. A I + I a) I = -6 A V = -20 Volts b) 1 = 8 A V = 30 Volts c) = 4 A V = -80 Volts d) I = -5 A V = 40 Volts B 3) (5 pts) Use Ohm's Law, KCL and KVL to determine values for V1, V2, V₁, I₁, and I2. 200 Ohms A, + 12 + V1 75 Ohms 3 Amps + V2 300 Ohms 25 Ohms 4) (5 pts) For the circuit in Problem 2, determine the power (expressed as a…arrow_forward
- Find the power delivered across the 10 ohm resistorarrow_forwardFor the Circuit Below Find: A) io in terms of Rb and the numerical resistor values provided in the schematic. Reduce your solution to a minimal Equations B)the power delivered across Rb in terms of Rb and the numerical resistor values provided in the schematic. Reduce your solution to a minimal equation. C) the power delivered across Rc if Rb is 5 Q Ra $50 15Ω M 120 90V +1 Rb 150 150 m Rcarrow_forwardProblems A.1 The square-law modulator is a device for the generation of DSB-PC-AM signals. In the square-law modulator, the sum of the modulating signal and the carrier wave forms the input signal to a nonlinear device. The output signal of the nonlinear device is a linear combination of the input signal and the square of the input signal. The output signal of the nonlinear device is then band-pass filtered. The BPF has a center frequency that is the same as the carrier frequency and a bandwidth that is twice the message bandwidth. Show the output of the BPF is a DSB-PC-AM signal, and determine a requirement between the carrier frequency and the message bandwidth that must be satisfied.arrow_forward
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