As the zeal for change over on public power supply and stand- by generator increases; Engineers have researched deeply into the different ways and methods of achieving power changeover both manual and automatic types.

It may no be considered as serious issue in some places where supply is up to 90% constant or where intermittent outage cause no great damage. However, places like the business confers, industrials and cold rooms need almost 100% power supply, and also hospitals and usefully clinics need constant power supply. 

TABLE OF CONTENT 

Title Page 

Certification

Dedication 

Acknowledgement

Table of Content

CHAPTER ONE  

1.0 Introduction 

1.1 Background

1.2 Aims / Objectives

1.3 Scope of Limitation 

1.4 Definition of Terms

CHAPTER TWO    

2.0 Literature Review

2.1 The Power Transformer

2.2 The Relay

2.3 Switches 

2.4 Capacitors 

2.5 Diode 

2.6 Indicator Lights (Light Limiting Diode)

2.7 Power Supply 

2.8 Resistor 

CHAPTER THREE    

3.0 Circuit Diagram

3.1 Block Diagram 

3.3 Contactor Wiring Diagram 

3.4 Diagram of the Casing 

CHAPTER FOUR 

4.0 Testing and Evaluation 

4.1 Testing 

4.2 Evaluation

4.3 Trouble Shooting and Remedy 

4.4 Maintainability

CHAPTER FIVE  

5.0 Conclusion 

5.1 Reference