Design And Construction Of Current Boost Power Supply From 90-220Vac
ABSTRACT
This work is on current booster power supply from 90- 220vac using transformer, which served as a step up transformer whose secondary voltage is greater than its primary voltage. It is designed to increase the voltage (90v) from the primary winding to 220vac in the secondary winding.
As a step-up unit, the transformer converts low-voltage into high-voltage. 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-up transformer power supply system with a primary voltage of 90V and a secondary voltage of 220V.
TABLE OF CONTENTS
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRACT
TABLE OF CONTENT
CHAPTER ONE
- INTRODUCTION
- BACKGROUND OF THE PROJECT
- PROBLEM STATEMENT
- AIM/OBJECTIVE OF THE PROJECT
- SCOPE OF THE PROJECT
- SIGNIFICANCE OF THE PROJECT
- APPLICATION OF THE PROJECT
- LIMITATION OF THE PROJECT
- PROJECT ORGANISATION
CHAPTER TWO
LITERATURE REVIEW
2.0 LITERATURE REVIEW
2.1 HISTORICAL BACKGROUND OF TRANSFORMER
2.2 CLASSIFICATION PARAMETER OF A TRNSFORMER
2.3 REVIEW OF DIFFERENT TYPES OF TRANSFORMER
2.4 OTHER TYPES OF TRANSFORMERS
CHAPTER THREE
3.0 METHODOLOGY
3.1 CIRCUIT DIAGRAM OF A STEP UP TRANSFORMER
3.2 BASIC WORKING PRINCIPLE OF A TRANSFORMER
3.3 TRANSFORMER CONSTRUCTION
3.4 CIRCUIT DISCRIPTION OF A STEP-UP TRANSFORMER
3.5 DESIGN FO THE TRANSFORMER PROPER
3.6 TURNS CALCULATION
CHAPTER FOUR
RESULT ANALYSIS
4.1 TESTING OF TRANSFORMER OPERATION
4.2 SHORT-CIRCUIT TEST
4.3 FAULT WITHSTAND
4.4 TRANSFORMER COOLING METHODS
4.5 DESIGN PHOTOGRAPH
4.6 TROUBLESHOOTING METHOD OF A STEP UP TRANSFORMER
CHAPTER FIVE
- CONCLUSIONS
- RECOMMENDATION
5.3 REFERENCES
CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE STUDY
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-up transformer. A step up transformer: is one whose secondary voltage is greater than its primary voltage. It is designed to increase the voltage from the primary winding to the secondary winding.
For the course of this work, a step up transformer which is used to convert 90V to 220vac was built which is main objective of the project.
1.2 PROBLEM STATEMENT
The standard power supply for Nigeria is 220vac but at times due to malfunction of distribution transformer or from any other source a low voltage as low as 90vac can be supplied which hindered consumers from using the supply till the the situation will be rectified. In order to overcome this problem a step up power supplied was designed whose function is to boost supplied voltage from 90vac to 220vac.
1.3 AIM/OBJECTIVE OF THE PROJECT
The main aim of this work is to produce a 220vac from a 90vac at a low cost using transformer. At the end of this work:
- a transformer with primary voltage of 90V and a secondary voltage of 220V would be constructed.
- Principle of operation of a transformer would be learned
- Different types of transformer will be discussed
- Different types of Cooling systems of a transformer will be discussed
1.4 SIGNIFICANCE OF THE PROJECT
A step up transformer is needed to increase the incoming 90 Volt electricity supplied to 220 Volts supply. It can be safely used powering 220v rated appliances. The design is a cheap way of generating power supply from a low voltage supply. It has an easy maintenance.
1.5 APPLICATION OF THE PROJECT
i. Aerospace
ii. Home
iii. industries
iv. Industrial/Semiconductor Fabrication
v. Medical
vi. Military/Defense
vii. Scientific
1.6 DEFINITION OF TERMS
Step-down: A converter where output voltage is lower than the input voltage (such as a buck converter).
Step-up: A converter that outputs a voltage higher than the input voltage (such as a boost converter).
Continuous current mode: Current and thus the magnetic field in the inductive energy storage never reach zero.
Discontinuous current mode: Current and thus the magnetic field in the inductive energy storage may reach or cross zero.
Noise: Unwanted electrical and electromagnetic signal noise, typically switching artifacts.
1.7 PROJECT WORK ORGANISATION
The various stages involved in the development of this project have been properly put into five chapters to enhance comprehensive and concise reading. In this project thesis, the project is organized sequentially as follows:
Chapter one of this work is on the introduction to the power supply system. In this chapter, the background, significance, objective limitation and problem of power supply system were discussed.
Chapter two is on literature review of the work. In this chapter, all the literature pertaining to this work was reviewed.
Chapter three is on design methodology. In this chapter all the method involved during the design and construction were discussed.
Chapter four is on testing analysis. All testing that result accurate functionality was analyzed. Chapter five is on conclusion, recommendation and references.
The Title Page should be the first section of your project “Design And Construction Of Current Boost Power Supply From 90-220Vac”, providing essential details like the project title, your name, your supervisor’s name, the institution, and the submission date. After that, the Abstract offers a brief summary of your project, touching on its purpose, methods, results, and conclusions in 150-300 words. The Acknowledgments section is where you can thank those who supported your research, such as your supervisor, peers, or organizations that provided resources.
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The main body of the Design And Construction Of Current Boost Power Supply From 90-220Vac should start with the Introduction, which provides background information, outlines the research problem, states your objectives, and gives a brief overview of your research methods. Following that, the Literature Review offers an in-depth look at previous research relevant to your project, identifying gaps your study aims to address. The Methodology section then explains the research design, tools, and data collection methods you used to conduct the project and analyze the data.
In the Results and Discussion section, you present your findings and discuss them in relation to the Design And Construction Of Current Boost Power Supply From 90-220Vac research questions or objectives, often using tables or charts to help explain the data. The Conclusion summarizes the key results, discusses their implications, and suggests possible directions for future research. You may also include recommendations based on your findings, offering practical advice for improvements or applications. Finally, the Design And Construction Of Current Boost Power Supply From 90-220Vac project should include a References or Bibliography section to list all the sources you cited, as well as Appendices for any additional material. A Statement of Originality is often included to confirm the authenticity of your work