Final Year
Get Started
Preview only — this sample cannot be downloaded or printed.
Final YearPreview only

A project submitted to the Department of Electrical / Electronics Engineering

Design and Construction of a 3-Phase Automatic Transfer Switch (ATS)

By

Halima Abdullahi

U/2014/ABC/0166

In partial fulfilment of the requirements for the award of a Bachelor's degree

Supervisor: Prof. J. M. Otieno

2024

Abstract

Designs an ATS that detects mains failure, signals the generator to start, transfers load after stabilisation, and reverses on mains restoration. Targets small Nigerian businesses. The study is organised into five chapters covering the introduction, review of related literature, system analysis and design, implementation and testing, and the summary, conclusion and recommendations.

Table of Contents

Chapter One: Introduction

  1. 1.1 Background to the Study4
  2. 1.2 Statement of the Problem6
  3. 1.3 Aim and Objectives of the Study8
  4. 1.4 Research Questions10
  5. 1.5 Significance of the Study12
  6. 1.6 Scope of the Study14
  7. 1.7 Limitations of the Study16
  8. 1.8 Operational Definition of Terms18

Chapter Two: Literature Review

  1. 2.1 Conceptual Review16
  2. 2.2 Theoretical Framework18
  3. 2.3 Empirical Review of Related Studies20
  4. 2.4 Gap in Literature22
  5. 2.5 Summary of Literature Review24

Chapter Three: System Analysis and Design

  1. 3.1 Analysis of the Existing System28
  2. 3.2 Problems of the Existing System30
  3. 3.3 Proposed System32
  4. 3.4 System Requirements Specification34
  5. 3.5 System Design and Architecture36
  6. 3.6 Database Design38
  7. 3.7 Use Case and Flow Diagrams40

Chapter Four: Implementation and Testing

  1. 4.1 System Implementation40
  2. 4.2 Choice of Development Tools42
  3. 4.3 System Testing44
  4. 4.4 Test Results and Evaluation46
  5. 4.5 System Documentation48

Chapter Five: Summary, Conclusion and Recommendations

  1. 5.1 Summary of Findings52
  2. 5.2 Conclusion54
  3. 5.3 Recommendations56
  4. 5.4 Suggestions for Further Studies58

References

Appendices

Final YearPreview only

Chapter One: Introduction

1.1 Background to the Study

Designs an ATS that detects mains failure, signals the generator to start, transfers load after stabilisation, and reverses on mains restoration. Targets small Nigerian businesses.

1.2 Statement of the Problem

Microcontroller-based automatic transfer switch between PHCN mains and standby generator. Existing approaches remain limited in reach, accuracy and ease of use, which creates the gap this study addresses.

1.3 Aim and Objectives

The aim of this study is to design and construction of a 3-phase automatic transfer switch (ats). The specific objectives are to:

  1. review existing literature and systems related to the study;
  2. design and build the system using Arduino / PIC, Contactors, Voltage sensors;
  3. evaluate the results against the stated problem;
  4. make recommendations for practice and further research.

1.4 Scope of the Study

Introduction: background to automatic transfer switches, statement of the problem (frequent PHCN outages force manual switching, causing downtime and damage to appliances), aim and objectives, research questions, scope, significance of the study, and definition of terms.

Chapter Two: Literature Review

Literature Review: theoretical framework, review of related works on automatic transfer switches, gaps in existing studies, and a summary positioning this project. Literature Review: theoretical framework, review of related works on automatic transfer switches, gaps in existing studies, and a summary positioning this project.

Chapters 2–5 are not part of this preview.