Homework Help is Here – Start Your Trial Now!
Engineering
Electrical Engineering
The line voltage of a wye-connected 2400-V 600-kVA unity power factor AC generator is reconnected for delta operation. What is the new voltage, current, and kilovoltampere rating?

The line voltage of a wye-connected 2400-V 600-kVA unity power factor AC generator is reconnected for delta operation. What is the new voltage, current, and kilovoltampere rating?

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

5-

a.

b.

c.

**Course #1105: Transformers** **3.** What must be the speed of a six-pole 25-Hz synchronous generator? - a) 500 rpm - b) 900 rpm - c) 1200 rpm - d) none of the above **4.** A three-phase generator has a load of 100 kW per phase at a power factor of 80 percent, lagging. **A)** What is the three-phase kilowatt load? - a) 30.1 kW - b) 300 kW - c) 375 kW - d) none of the above **B)** What is the three-phase kilovoltampere load? - a) 30.1 kVA - b) 300 kVA - c) 375 kVA - d) none of the above **C)** What is the line current if the line voltage is 7200 V? - a) 30.1 A - b) 300 A - c) 375 A - d) none of the above **5.** The line voltage of a wye-connected 2400-V 600-kVA unity power factor AC generator is reconnected for delta operation. What is the new voltage, current, and kilovoltampere rating? **A)** Voltage - a) 1385.6 V - b) 2400 V - c) 4156.9 V - d) none of the above
Transcribed Image Text:**Course #1105: Transformers** **3.** What must be the speed of a six-pole 25-Hz synchronous generator? - a) 500 rpm - b) 900 rpm - c) 1200 rpm - d) none of the above **4.** A three-phase generator has a load of 100 kW per phase at a power factor of 80 percent, lagging. **A)** What is the three-phase kilowatt load? - a) 30.1 kW - b) 300 kW - c) 375 kW - d) none of the above **B)** What is the three-phase kilovoltampere load? - a) 30.1 kVA - b) 300 kVA - c) 375 kVA - d) none of the above **C)** What is the line current if the line voltage is 7200 V? - a) 30.1 A - b) 300 A - c) 375 A - d) none of the above **5.** The line voltage of a wye-connected 2400-V 600-kVA unity power factor AC generator is reconnected for delta operation. What is the new voltage, current, and kilovoltampere rating? **A)** Voltage - a) 1385.6 V - b) 2400 V - c) 4156.9 V - d) none of the above
### Electrical Engineering Quiz **B) Current** 1. Identify the current from the following options: - a) 83.34 A - b) 144.34 A - c) 250 A - d) none of the above **C) kVA** 2. Determine the kVA from the options below: - a) 600 kVA - b) 1039.23 kVA - c) 1257 kVA - d) none of the above **6. AC Generator Regulation** **A)** Calculate the regulation of an AC generator with: - Full-load voltage: 2400 V - No-load voltage: 3240 V at 80% lagging power factor Options: - a) 20% - b) 27% - c) 35% - d) none of the above **B)** At unity power factor, how will the percent regulation compare to that at 80% lagging power factor? - a) larger - b) smaller - c) same - d) none of the above **7. Kilowatt Rating of a Three-Phase Generator** **A)** What is the kilowatt rating of a three-phase 975-kVA generator at unity power factor? Options: - a) 487.5 kW - b) 780 kW - c) 975 kW - d) none of the above **Note:** The questions are designed to test your understanding of electrical concepts, including current measurement, apparent power (kVA), regulation of AC generators, and power factor impact on electricity generation.
Transcribed Image Text:### Electrical Engineering Quiz **B) Current** 1. Identify the current from the following options: - a) 83.34 A - b) 144.34 A - c) 250 A - d) none of the above **C) kVA** 2. Determine the kVA from the options below: - a) 600 kVA - b) 1039.23 kVA - c) 1257 kVA - d) none of the above **6. AC Generator Regulation** **A)** Calculate the regulation of an AC generator with: - Full-load voltage: 2400 V - No-load voltage: 3240 V at 80% lagging power factor Options: - a) 20% - b) 27% - c) 35% - d) none of the above **B)** At unity power factor, how will the percent regulation compare to that at 80% lagging power factor? - a) larger - b) smaller - c) same - d) none of the above **7. Kilowatt Rating of a Three-Phase Generator** **A)** What is the kilowatt rating of a three-phase 975-kVA generator at unity power factor? Options: - a) 487.5 kW - b) 780 kW - c) 975 kW - d) none of the above **Note:** The questions are designed to test your understanding of electrical concepts, including current measurement, apparent power (kVA), regulation of AC generators, and power factor impact on electricity generation.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Analog to digital converters
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.
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