Q4. A 100KVA, 200/4000V Y-A transformer has per phase in per-unit system Regpa"0.3, Xegga"0.4, Repa=Xmpw=1200 refer to low voltage side: 1. Find the full-load voltage regulation when PF=0.9 Lagging. 2. Calculate the efficiency at the same load. 3. If a single phase of this transformer is connected as a step-up Autotransformer, find the maximum VA rating.

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...
icon
Related questions
Question

please solve all parts

Q4. A 100KVA, 200/4000V Y-A transformer has per phase in per-umit system Regpu=0.3, Xegpu=0.4,
Repu=Xm,pu=1200 refer to low voltage side:
1. Find the full-load voltage regulation when PF=0.9 Lagging.
2. Calculate the effciency at the same load.
3. If a single phase of this transformer is connected as a step-up Autotransformer, find the maximum VA
rating.
Transcribed Image Text:Q4. A 100KVA, 200/4000V Y-A transformer has per phase in per-umit system Regpu=0.3, Xegpu=0.4, Repu=Xm,pu=1200 refer to low voltage side: 1. Find the full-load voltage regulation when PF=0.9 Lagging. 2. Calculate the effciency at the same load. 3. If a single phase of this transformer is connected as a step-up Autotransformer, find the maximum VA rating.
Expert Solution
steps

Step by step

Solved in 4 steps

Blurred answer
Knowledge Booster
Magnetically Coupled Circuit
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,