Homework Help is Here – Start Your Trial Now!
Engineering
Electrical Engineering
For b) what is Vry, Vbr, Vyb? Why is Vyb phase -90 degrees and Vby phase 90 degrees?

For b) what is Vry, Vbr, Vyb? Why is Vyb phase -90 degrees and Vby phase 90 degrees?

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
See similar textbooks
icon
Related questions
Question
For b) what is Vry, Vbr, Vyb? Why is Vyb phase -90 degrees and Vby phase 90 degrees?
Q1 (a) An industrial unit operating at rated power can be represented by a balanced delta connected load (ZRY etc) of (600 + j120) N and is connected to a 3- phase, 11 kV and 50 Hz supply. フ Draw the circuit diagram, indicating VRY, the yellow line current (IR) and the load phase current (IBr ). line Voltay Calculate: (i) The three load phase currents (IRY, IYB and Ibr). (ii) The three line currents (IR, Iy and IB). (iii) The total real power, apparent power, reactive power and power factor at the 3 phase supply. An unbalanced condition in the above load in Q1(a) causes the impedance of ZRY to reduce to (450+j40) N, ZyB to reduce to (500 +j100) Q. and ZBr to remain the same. b2/2nced tar (i) mer B Using the information above: Calculate the 3 load phase currents (IRY, IYB and IBR). (ii) Draw a scaled phasor diagram indicating all phase and line voltages, and the three load phase currents. (iii) Using the scaled phasor diagram or otherwise determine the three line currents (IR, Iy and IB). (c) A 2 wattmeter measurement is made on the circuit in Q1(b). Wattmeter 1 bases its measurements on VRY and IR, and Wattmeter 2 uses VBY and IB. Determine the power (W) measured by each wattmeter, and the resultant total 3 phase power. Confirm this measurement using any other suitable caleulation. oba se pou
Transcribed Image Text:Q1 (a) An industrial unit operating at rated power can be represented by a balanced delta connected load (ZRY etc) of (600 + j120) N and is connected to a 3- phase, 11 kV and 50 Hz supply. フ Draw the circuit diagram, indicating VRY, the yellow line current (IR) and the load phase current (IBr ). line Voltay Calculate: (i) The three load phase currents (IRY, IYB and Ibr). (ii) The three line currents (IR, Iy and IB). (iii) The total real power, apparent power, reactive power and power factor at the 3 phase supply. An unbalanced condition in the above load in Q1(a) causes the impedance of ZRY to reduce to (450+j40) N, ZyB to reduce to (500 +j100) Q. and ZBr to remain the same. b2/2nced tar (i) mer B Using the information above: Calculate the 3 load phase currents (IRY, IYB and IBR). (ii) Draw a scaled phasor diagram indicating all phase and line voltages, and the three load phase currents. (iii) Using the scaled phasor diagram or otherwise determine the three line currents (IR, Iy and IB). (c) A 2 wattmeter measurement is made on the circuit in Q1(b). Wattmeter 1 bases its measurements on VRY and IR, and Wattmeter 2 uses VBY and IB. Determine the power (W) measured by each wattmeter, and the resultant total 3 phase power. Confirm this measurement using any other suitable caleulation. oba se pou
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Capacitor
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
Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Fundamentals of Electric Circuits
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:
9780078028229
Author:
Charles K Alexander, Matthew Sadiku
Publisher:
McGraw-Hill Education
Electric Circuits. (11th Edition)
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:
9780134746968
Author:
James W. Nilsson, Susan Riedel
Publisher:
PEARSON
Engineering Electromagnetics
Engineering Electromagnetics
Electrical Engineering
ISBN:
9780078028151
Author:
Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:
Mcgraw-hill Education,
SEE MORE TEXTBOOKS