Homework Help is Here – Start Your Trial Now!
Engineering
Electrical Engineering
A 25 kVA, 2400/240-V, single phase transformer has an equivalent impedance referred to the primary side of Z=3.45+ j 5.752 . The core loss is 120 W. The transformer delivers rated kVA to a load at rated secondary voltage and 0.85 power factor lagging. • Find the voltage applied to the primary side • Determine the percent voltage regulation • Find the efficiency of the transformer

A 25 kVA, 2400/240-V, single phase transformer has an equivalent impedance referred to the primary side of Z=3.45+ j 5.752 . The core loss is 120 W. The transformer delivers rated kVA to a load at rated secondary voltage and 0.85 power factor lagging. • Find the voltage applied to the primary side • Determine the percent voltage regulation • Find the efficiency of the transformer

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
A 25 kVA, 2400/240-V, single phase transformer has an equivalent impedance referred to the primary side of Z=3.45+ j 5.75Q .The core loss is 120 W. The transformer delivers rated kVA to a load at rated secondary voltage and 0.85 power factor lagging. • Find the voltage applied to the primary side • Determine the percent voltage regulation • Find the efficiency of the transformer
Transcribed Image Text:A 25 kVA, 2400/240-V, single phase transformer has an equivalent impedance referred to the primary side of Z=3.45+ j 5.75Q .The core loss is 120 W. The transformer delivers rated kVA to a load at rated secondary voltage and 0.85 power factor lagging. • Find the voltage applied to the primary side • Determine the percent voltage regulation • Find the efficiency of the transformer
Expert Solution
Step 1 For a single phase transformer

Given-

 Power of a transformer= 25kVA

 voltage=2400/240-V

core loss= 120 W

power factor= 0.85 lagging

R=3.45 Ω

Impedence-

Zpeq=3.45+j5.75 Ω

The full load current=25×10002400=10.41 A

power factor(p.f.)=0.85

cosϕ=0.85

φ=31.78

voltage regulation=I(Rcosφ+Xsinφ)=10.41(3.45×0.85+5.75×0.52)=61.65 V

trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Single phase transformer
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
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