Q26-Q32 refer to the figure shown below and described following:VABIAVAB 100 V/div2.5 ms/divIA10 A/div Q28. What is the rms voltage (Line-to-Neutral) supplied to the motor?(a) 50 VLN(b) 60 VLN(c) 86.7 VLN(d) 100 VLN(e) 120 VLNQ29. What is the peak-to-peak value of the PWM voltage supplied to the motor?(a) 208 V(b) 300 V(c) 347 V(d) 416 V(e) 600 VQ30. What is the rms value of the motor current?(a) 28.3(b) 20 A(c) 14.1 A(d) 11.5 A(e) 10.4 AQ31. What is the motor power factor?(a) 1(b) 0.87(c) 0.71(d) 0.6(e) 0.5Q32. What is the motor synchronous speed?(a) 1800 rpm(b) 1500 rpm(c) 900 rpm(d) 750 rpm(e) 600 rpm

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Answered: Q26-Q32 refer to the figure shown below…

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Electrical Engineering

Q26-Q32 refer to the figure shown below and described following: VAB IA VAB 100 V/div 2.5 ms/div IA 10 A/div

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter32: Two-speed, One-winding (consequent Pole) Motor Controllers

Section: Chapter Questions

Problem 6SQ: Describe the operation of Figure 325 (B) by adding jumper wire A to the original circuit.

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Concept explainers

Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.

Question

Q26-Q32 refer to the figure shown below and described following:
VAB
IA
VAB 100 V/div
2.5 ms/div
IA
10 A/div

Q28. What is the rms voltage (Line-to-Neutral) supplied to the motor?
(a) 50 VLN
(b) 60 VLN
(c) 86.7 VLN
(d) 100 VLN
(e) 120 VLN
Q29. What is the peak-to-peak value of the PWM voltage supplied to the motor?
(a) 208 V
(b) 300 V
(c) 347 V
(d) 416 V
(e) 600 V
Q30. What is the rms value of the motor current?
(a) 28.3
(b) 20 A
(c) 14.1 A
(d) 11.5 A
(e) 10.4 A
Q31. What is the motor power factor?
(a) 1
(b) 0.87
(c) 0.71
(d) 0.6
(e) 0.5
Q32. What is the motor synchronous speed?
(a) 1800 rpm
(b) 1500 rpm
(c) 900 rpm
(d) 750 rpm
(e) 600 rpm

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