a) Evaluate the power rating requirement of the machine. [Hint: Power rating is the total amount of power required by a machine to work under normal situation.] b) Evaluate the energy efficiency of the machine. [Hint: Power factor is an expression of energy efficiency.] c) Verify your evaluation in Q2(b) by determining the active and reactive power in the circuit.

Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter29: Dc Generators
Section: Chapter Questions
Problem 1PA: You are working as an electrician in a large steel manufacturing plant, and you are in the process...
icon
Related questions
Question
Question 2
A machine with a coil having an internal resistance of 3 and an inductance of 0.1 H is
supplied by an a.c. source of 240 V, 50 Hz. Figure Q2 shows the equivalent circuit of the
machine.
V1
R1
3 Ω
Figure Q2
L1
야
0.1 H
a) Evaluate the power rating requirement of the machine.
[Hint: Power rating is the total amount of power required by a machine to work under
normal situation.]
b) Evaluate the energy efficiency of the machine.
[Hint: Power factor is an expression of energy efficiency.]
c) Verify your evaluation in Q2(b) by determining the active and reactive power in the
circuit.
d) Design a power factor correction circuitry to improve the machine efficiency to at least
90%.
Transcribed Image Text:Question 2 A machine with a coil having an internal resistance of 3 and an inductance of 0.1 H is supplied by an a.c. source of 240 V, 50 Hz. Figure Q2 shows the equivalent circuit of the machine. V1 R1 3 Ω Figure Q2 L1 야 0.1 H a) Evaluate the power rating requirement of the machine. [Hint: Power rating is the total amount of power required by a machine to work under normal situation.] b) Evaluate the energy efficiency of the machine. [Hint: Power factor is an expression of energy efficiency.] c) Verify your evaluation in Q2(b) by determining the active and reactive power in the circuit. d) Design a power factor correction circuitry to improve the machine efficiency to at least 90%.
Expert Solution
steps

Step by step

Solved in 3 steps with 2 images

Blurred answer
Knowledge Booster
Direct Current (DC) Motor
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.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning