Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Chapter 59, Problem 9SQ
To determine
List the probable causes for the failure of a coil to pick up.
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Answer question 3 using Multisim please
Answer question 2 using Multisim please
Q1. Choose the correct answer
1. With fixed number of quantization levels in PCM, the quantization noise is
(linearly
proportional to signal amplitude, non-linearly proportional to signal amplitude, linearly proportional to
signal frequency, non-linearly proportional to signal frequency).
2. A PCM encoder uses 130 quantization levels. Which of the following N bits is more economical to
encode such signal? (N=6, N=7, N=9, N=10).
3. Frequency Shift Keying can be accomplished by
_multiplying two On-Off Keying signals, combining two Frequency Shift Keying signals, adding two
(adding two On-Off Keying signals,
Frequency Shift Keying signals).
4. Which of the following statements is true with respect to PCM? (The parallel binary data is converted
into serial before transmission, Analog data is transmitted directly, Analog signal is amplified before
transmission, The analog signal is converted into parallel binary data before transmission).
5. A baseband speech signal of maximum frequency of…
Chapter 59 Solutions
Electric Motor Control
Ch. 59 - Prob. 1SQCh. 59 - Why should the motor be run for a period of time...Ch. 59 - What may occur if a jumper is placed across coil M...Ch. 59 - In what position do ball-bearing motors function?Ch. 59 - Motors will operate satisfactorily at what percent...Ch. 59 - What basic sensory faculties should a...Ch. 59 - What is an orderly step-by-step procedure in...Ch. 59 - What might be a hazard if a motor is started in...Ch. 59 - Prob. 9SQCh. 59 - What are the probable causes of a noisy magnet?
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- Please answer all You and your crew have made it through the night and the day has brought more warmth. After searching the industrial site, you find an abundant amount of fuel to run the generators to keep you warm. You also find a memory card labelled “cure”, but your cell phone battery is dead. First things first, you will need to stay safe as the zombies continue to hunt you in your current location. The industrial site is surrounded by a metal chain-link fence. You decide you will electrify the fence to keep the zombies from scaling it. But the output voltage from the generators is not high enough to really deter them. You would like to apply around 10 kV to the fence (AC or DC, at that voltage it doesn’t really matter). You find a transformer that you can use but it only has a turn ratio of 10. You find some diodes and capacitors and construct the circuit shown in Figure 3 with the intention of hooking Vout to the fence. 1. Perform a circuit JS simulation, displaying…arrow_forward2. A three-phase transformer connection Yy, 2000 kVA, 20000/6000 V has the relative short-circuit voltages Ecc = 7% and ERcc = 1.7%.It is known that when empty this transformer consumes a power Po = 12.24 kW. Calculate:a. Parameters Zcc, Rcc, Xcc, referring to the primary and EXcc.b. If the transformer is connected at rated voltage and feeds a load of 1800 kVA, fp = 0.8, calculate the line voltage at the secondary.c. The maximum apparent power, and the maximum efficiency fp = 0.8 inductive. Perform the exercise by the collaborators and without using artificial intelligence pleasearrow_forward1. A three-phase transformer with Yd connection, 300 kVA, 12000/220 V, has been short-circuit tested on the high voltage side giving the following results: 750 V, 14.434 A, 10838 W.When the transformer is connected to nominal voltage without load it consumes 5400W. Calculate:to. Relative voltages of short circuit high voltage side: εcc, εRcc and εXcc.b. The voltage in the secondary when the transformer is connected to nominal voltage and feeds a load of 200 kW fp = 0.8 in delay.c. Apparent power of maximum efficiency and maximum efficiency with fp = 0.95 inductive. Please solve for one of the collaborators and without using artificial intelligencearrow_forward
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