Homework Help is Here – Start Your Trial Now!
Engineering
Electrical Engineering
Problem 5: Synthesis - 20% Figure 5 shows a simple model of a factory with two induction motors, Z₁ and Z2, and one synchronous condensor, Z3. The grid acts as a voltage source with Vrms = 240Z0° V. The impedances of the three loads are: Z₁ = 10/30° Z2 = 10/45° Z310-90° Initially the condensor is not connected and only Z₁ and Z2 consume power. a) What is the real, reactive, and apparent power being consumed by Z₁? b) What is the real, reactive, and apparent power being consumed by Z₂? c) What is the real, reactive, and apparent power being supplied by the voltage source? d) What is the current being supplied by the voltage source? e) What is the power factor of the voltage source? Next the condensor is connected to the network by closing the switch. Note that the powers consumed by Z₁ and Z2 are unchanged. f) What is the real, reactive, and apparent power being consumed by Z3? g) What is the real, reactive, and apparent power being supplied by the voltage source now? h) What is the current being supplied by the voltage source now? i) What is the power factor of the voltage source now? j) What happened to the magnitude of the current supplied by the voltage source when the switch was closed? Why?

Problem 5: Synthesis - 20% Figure 5 shows a simple model of a factory with two induction motors, Z₁ and Z2, and one synchronous condensor, Z3. The grid acts as a voltage source with Vrms = 240Z0° V. The impedances of the three loads are: Z₁ = 10/30° Z2 = 10/45° Z310-90° Initially the condensor is not connected and only Z₁ and Z2 consume power. a) What is the real, reactive, and apparent power being consumed by Z₁? b) What is the real, reactive, and apparent power being consumed by Z₂? c) What is the real, reactive, and apparent power being supplied by the voltage source? d) What is the current being supplied by the voltage source? e) What is the power factor of the voltage source? Next the condensor is connected to the network by closing the switch. Note that the powers consumed by Z₁ and Z2 are unchanged. f) What is the real, reactive, and apparent power being consumed by Z3? g) What is the real, reactive, and apparent power being supplied by the voltage source now? h) What is the current being supplied by the voltage source now? i) What is the power factor of the voltage source now? j) What happened to the magnitude of the current supplied by the voltage source when the switch was closed? Why?

Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter32: Three-phase Motors
Section: Chapter Questions
Problem 8RQ
See similar textbooks
icon
Related questions
Question
not use ai please
Problem 5: Synthesis - 20% Figure 5 shows a simple model of a factory with two induction motors, Z₁ and Z2, and one synchronous condensor, Z3. The grid acts as a voltage source with Vrms = 240Z0° V. The impedances of the three loads are: Z₁ = 10/30° Z2 = 10/45° Z310-90° Initially the condensor is not connected and only Z₁ and Z2 consume power. a) What is the real, reactive, and apparent power being consumed by Z₁? b) What is the real, reactive, and apparent power being consumed by Z₂? c) What is the real, reactive, and apparent power being supplied by the voltage source? d) What is the current being supplied by the voltage source? e) What is the power factor of the voltage source? Next the condensor is connected to the network by closing the switch. Note that the powers consumed by Z₁ and Z2 are unchanged. f) What is the real, reactive, and apparent power being consumed by Z3? g) What is the real, reactive, and apparent power being supplied by the voltage source now? h) What is the current being supplied by the voltage source now? i) What is the power factor of the voltage source now? j) What happened to the magnitude of the current supplied by the voltage source when the switch was closed? Why?
Transcribed Image Text:Problem 5: Synthesis - 20% Figure 5 shows a simple model of a factory with two induction motors, Z₁ and Z2, and one synchronous condensor, Z3. The grid acts as a voltage source with Vrms = 240Z0° V. The impedances of the three loads are: Z₁ = 10/30° Z2 = 10/45° Z310-90° Initially the condensor is not connected and only Z₁ and Z2 consume power. a) What is the real, reactive, and apparent power being consumed by Z₁? b) What is the real, reactive, and apparent power being consumed by Z₂? c) What is the real, reactive, and apparent power being supplied by the voltage source? d) What is the current being supplied by the voltage source? e) What is the power factor of the voltage source? Next the condensor is connected to the network by closing the switch. Note that the powers consumed by Z₁ and Z2 are unchanged. f) What is the real, reactive, and apparent power being consumed by Z3? g) What is the real, reactive, and apparent power being supplied by the voltage source now? h) What is the current being supplied by the voltage source now? i) What is the power factor of the voltage source now? j) What happened to the magnitude of the current supplied by the voltage source when the switch was closed? Why?
Expert Solution
steps

Step by step

Solved in 2 steps with 5 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
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
Power System Analysis and Design (MindTap Course …
Power System Analysis and Design (MindTap Course …
Electrical Engineering
ISBN:
9781305632134
Author:
J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:
Cengage Learning
Electricity for Refrigeration, Heating, and Air C…
Electricity for Refrigeration, Heating, and Air C…
Mechanical Engineering
ISBN:
9781337399128
Author:
Russell E. Smith
Publisher:
Cengage Learning
Electric Motor Control
Electric Motor Control
Electrical Engineering
ISBN:
9781133702818
Author:
Herman
Publisher:
CENGAGE L
SEE MORE TEXTBOOKS