USER'S INSTRUCTIONS: The project work you are about to view is on "design and construction of a 220v-50v step down transformer with power rating of 500va" Please, sit back and study the below research material carefully. This project topic "design and construction of a 220v-50v step down transformer with power rating of 500va" have complete 5(five) Chapters. The complete Project Material/writeup include: Abstract + Introduction + etc + Literature Review + methodology + etc + Conclusion + Recommendation + References/Bibliography.Our aim of providing this "design and construction of a 220v-50v step down transformer with power rating of 500va" project research material is to reduce the stress of moving from one school library to another all in the name of searching for "design and construction of a 220v-50v step down transformer with power rating of 500va" research materials. We are not encouraging any form of plagiarism. This service is legal because, all institutions permit their students to read previous projects, books, articles or papers while developing their own works.

---

TITLE PAGE

DESIGN AND CONSTRUCTION OF A 220V-50V STEP DOWN TRANSFORMER WITH POWER RATING OF 500VA

BY

---
EE/H2013/01430
DEPARTMENT OF ---
INSTITUTE OF ---

DECEMBER,2018

---

APPROVAL PAGE

This is to certify that the research work, "design and construction of a 220v-50v step down transformer with power rating of 500va" by ---, Reg. No. EE/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on Electrical and Electronics Engineering has been approved.

By
Dr. ---                                           Dr. ---
Supervisor                                                  Head of Department.
Signature……………….                           Signature……………….        

……………………………….
Dr. ---
External Invigilator

---

DEDICATION
This project is dedicated to Almighty God for his protection, kindness, strength over my life throughout the period and also to my --- for his financial support and moral care towards me.Also to my mentor --- for her academic advice she often gives to me. May Almighty God shield them from the peril of this world and bless their entire endeavour Amen.

---

ACKNOWLEDGEMENT

The successful completion of this project work could not have been a reality without the encouragement of my --- and other people. My immensely appreciation goes to my humble and able supervisor mr. --- for his kindness in supervising this project.
My warmest gratitude goes to my parents for their moral, spiritual and financial support throughout my study in this institution.
My appreciation goes to some of my lecturers among whom are Mr. ---, and Dr. ---. I also recognize the support of some of the staff of --- among whom are: The General Manager, Deputy General manager, the internal Auditor Mr. --- and the ---. Finally, my appreciation goes to my elder sister ---, my lovely friends mercy ---, ---, --- and many others who were quite helpful.

---

PROJECT DESCRIPTION: This work “design and construction of a 220v-50v step down transformer with power rating of 500va” research material is a complete and well researched project material strictly for academic purposes, which has been approved by different Lecturers from different higher institutions. We made Preliminary pages, Abstract and Chapter one of “design and construction of a 220v-50v step down transformer with power rating of 500va” visible for everyone, then the complete material on “design and construction of a 220v-50v step down transformer with power rating of 500va” is to be ordered for. Happy viewing!!!

---

This work is on 220vac to 50vac power supply using transformer. A Transformer is a static apparatus, with no moving parts, which transforms electrical power from one circuit to another with changes in voltage and current and no change in frequency. There are two types of transformers classified by their function: Step up Transformer and Step down Transformer. In this work we are looking at a step down transformer whose secondary voltage is less than its primary voltage. It is designed to reduce the voltage (220v) from the primary winding to 50v in the secondary winding.
As a step-down unit, the transformer converts high-voltage, low-current power into low-voltage, high-current power. The larger-gauge wire used in the secondary winding is necessary due to the increase in current. The primary winding, which doesn’t have to conduct as much current, may be made of smaller-gauge wire.
The aim of this work is to design and construct a step-down transformer power supply system with a primary voltage of 220V and a secondary voltage of 50V

TABLE OF CONTENTS
COVER PAGE
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRACT

CHAPTER ONE
INTRODUCTION
1.1      BACKGROUND OF THE PROJECT

• AIM AND OBJECTIVE OF THE PROJECT
• SIGNIFICANCE OF THE PROJECT
• APPLICATION OF THE PROJECT
• SCOPE OF THE PROJECT
• LIMITATION OF THE PROJECT
• PROJECT ORGANISATION

CHAPTER TWO
LITERATURE REVIEW

• REVIEW OF THE STUDY
• HISTORICAL BACKGROUND OF THE PROJECT
• CLASSIFICATION PARAMETERS OF TRANSFORMER
• REVIEW OF DIFFERENT TYPES OF TRANSFORMER
• OTHER TYPES OF TRANSFORMERS

CHAPTER THREE
SYSTEM DESIGN METHODLOGY

• CIRCUIT DIAGRAM OF A STEP DOWN TRANSFORMER
• BASIC WORKING PRINCIPLE OF A TRANSFORMER
• TRANSFORMER CONSTRUCTION
• CIRCUIT DISCRIPTION OF A STEP-DOWN TRANSFORMER
• E.M.F EQUATION OF A TRANSFORMER
• DESIGN CALCULATION

CHAPTER FOUR

•      TESTING, MEASUREMENT AND RESULTS
• TESTING OF TRANSFORMER OPERATION
• SHORT-CIRCUIT TEST
• FAULT WITHSTAND
• TRANSFORMER COOLING METHODS
• DESIGN PHOTOGRAPH
• HOW TO CHECK A STEP DOWN TRANSFORMER

CHAPTER FIVE

• CONCLUSION
• RECOMMENDATION
• REFERENCE

 

CHAPTER ONE
1.0                                                        INTRODUCTION
1.1                                         BACKGROUND OF THE PROJECT
Power supply supplies electric energy to an electrical load. The primary function of a power supply is to convert one form of electrical energy to another and, as a result, power supplies are sometimes referred to as electric power converters. Some power supplies are discrete, stand-alone devices, whereas others are built into larger devices along with their loads. Examples of the latter include power supplies found in desktop computers and consumer electronics devices.
Every power supply must obtain the energy it supplies to its load, as well as any energy it consumes while performing that task, from an energy source. Depending on its design, a power supply may obtain energy from various types of energy sources, including electrical energy transmission systems, energy storage devices such as a batteries and fuel cells, electromechanical systems such as generators and alternators, solar power converters, or another power supply.
All power supplies have a power input, which receives energy from the energy source, and a power output that delivers energy to the load. In most power supplies the power input and output consist of electrical connectors or hardwired circuit connections, though some power supplies employ wireless energy transfer in lieu of galvanic connections for the power input or output.
However, in this work, a power supply was design using a transformer which serves as a step-down transformer. A step down transformer: is one whose secondary voltage is less than its primary voltage. It is designed to reduce the voltage from the primary winding to the secondary winding. This kind of transformer “steps down” the voltage applied to it.
As a step-down unit, the transformer converts high-voltage, low-current power into low-voltage, high-current power. The larger-gauge wire used in the secondary winding is necessary due to the increase in current. The primary winding, which doesn’t have to conduct as much current, may be made of smaller-gauge wire.
For the course of this work, a step down transformer of 220V to 50v was constructed which is main objective of the project.

1.2                                        AIM/OBJECTIVE OF THE PROJECT
Step down transformer is designed to reduce the voltage from the primary winding to the secondary winding. This kind of transformer “steps down” the voltage applied to it. The aim of this work is to construct a transformer with a primary voltage of 220V and a secondary voltage of 50V. At the end of this work students involved would be able:

• Build a transformer with primary voltage of 220V and a secondary voltage of 50V would be constructed.
• Know the Principle of operation of a transformer would be learned
• Know different types of transformer will be discussed
• Know different types of Cooling systems of a transformer will be discussed

1.3                                         SIGNIFICANCE OF THE PROJECT

• A step down transformer is needed to decrease the incoming 220 Volt electricity found in most parts of the world to 50 Volts power. It can be safely used powering 50v rated appliances.
• Useful in stepping down the voltage, thereby making transmission power easier and cheaper
• More than 99% of efficiency
• Provides varied voltage requirements
• Low Cost
• High Reliability
• High Durability

1.4                                          APPLICATION OF THE PROJECT
Step down Transformers are also used extensively in electronic products to decrease (or step-down) the supply voltage to a level suitable for the low voltage circuits they contain. The transformer also electrically isolates the end user from contact with the supply voltage. Other applications of Step Down Transformers includes:

• In main adapters and chargers for cell phones, stereos and CD players
• To step down the voltage level in transmission line
• In welding machines by reducing voltage and increasing current.
• In televisions, voltage stabilizers, inverters, etc.

1.5                                                 SCOPE OF THE PROJECT
This work was carried out using step-down transformer, as evidenced by the high turn count of the primary winding and the low turn count of the secondary. As a step-down unit, this transformer converts high-voltage, low-current power into low-voltage, high-current power. The larger-gauge wire used in the secondary winding is necessary due to the increase in current. The primary winding, which doesn’t have to conduct as much current, may be made of smaller-gauge wire.
The Transformers used is often constructed in such a way that it is not obvious which wires lead to the primary winding and which lead to the secondary. One convention used in the electric power industry to help alleviate confusion is the use of “H” designations for the higher-voltage winding (the primary winding in a step-down unit; the secondary winding in a step-up) and “X” designations for the lower-voltage winding.

1.6                                           LIMITATION OF THE PROJECT
In this work, it is possible to operate either of these transformer types backwards (powering the secondary winding with an AC source and letting the primary winding power a load) to perform the opposite function: a step-up can function as a step-down and vice-versa. However, as we saw in this work, efficient operation of a transformer requires that the individual winding inductances be engineered for specific operating ranges of voltage and current, so if a transformer is to be used “backwards” like this it must be employed within the original design parameters of voltage and current for each winding, lest it prove to be inefficient (or lest it be damaged by excessive voltage or current).

1.7                                                         PROJECT ORGANISATION
The work is organized as follows: chapter one discuses the introductory part of the work,   chapter two presents the literature review of the study,  chapter three describes the methods applied,  chapter four discusses the results of the work, chapter five summarizes the research outcomes and the recommendations.

 

CHAPTER ONE: The complete chapter one of “design and construction of a 220v-50v step down transformer with power rating of 500va” is available. Order full work to download. Chapter one of “design and construction of a 220v-50v step down transformer with power rating of 500va”consists of the literature review. In this chapter all the related work on“design and construction of a 220v-50v step down transformer with power rating of 500va” was reviewed.

CHAPTER TWO: The complete chapter two of “design and construction of a 220v-50v step down transformer with power rating of 500va” is available. Order full work to download. Chapter two of “design and construction of a 220v-50v step down transformer with power rating of 500va” consists of the literature review. In this chapter all the related work on “design and construction of a 220v-50v step down transformer with power rating of 500va” was reviewed.

CHAPTER THREE: The complete chapter three of “design and construction of a 220v-50v step down transformer with power rating of 500va” is available. Order full work to download. Chapter three of “design and construction of a 220v-50v step down transformer with power rating of 500va” consists of the methodology. In this chapter all the method used in carrying out this work was discussed.

CHAPTER FOUR: The complete chapter four of “design and construction of a 220v-50v step down transformer with power rating of 500va” is available. Order full work to download. Chapter four of “design and construction of a 220v-50v step down transformer with power rating of 500va” consists of all the test conducted during the work and the result gotten after the whole work

CHAPTER FIVE: The complete chapter five of “design and construction of a 220v-50v step down transformer with power rating of 500va” is available. Order full work to download. Chapter five of “design and construction of a 220v-50v step down transformer with power rating of 500va” consist of conclusion, recommendation and references.

---

To "DOWNLOAD" the complete material on this particular topic above click "HERE"

Do you want our Bank Accounts? please click HERE

To view other related topics click HERE

To "SUMMIT" new topic(s), develop a new topic OR you did not see your topic on our site but want to confirm the availiability of your topic click HERE

Do you want us to research your new topic? if yes, click "HERE"

Do you have any question concerning our post/services? click HERE for answers to your questions

You can also visit our facebook Page at fb.me/hyclas to view our related construction (or design) picture.

---

For more information contact us through Any of the following means:

Mobile No :+2348146561114 or +2347015391124 [Mr. Innocent]

Email address :engr4project@gmail.com

Watsapp No :+2348146561114

To View Our Design Pix: You can also visit our facebook Page at fb.me/hyclas for our design photos/pics.

---

COUNTRIES THAT FOUND OUR SERVICES USEFUL

Australia, Botswana, Canada, Europe, Ghana, Ireland, India, Kenya, Liberia, Malaysia, Namibia, New Zealand, Nigeria, Pakistan, Philippines, Singapore, Sierra Leone, South Africa, Uganda, United States, United Kindom, Zambia, Zimbabwe, etc
Support: +234 8146561114 or +2347015391124
Watsapp No :+2348146561114
Email Address :engr4project@gmail.com

---

IF YOU ARE SATISFIED WITH OUR SERVICES, PLEASE DO NOT FORGET TO INVITE YOUR FRIENDS AND COURSEMATES TO OUR PAGE.