CONSTRUCTION OF AN AUTOMATIC CHANGE-OVER SWITCH
TABLE OF CONTENTS
Title page i
Certification ii
Dedication iii
Acknowledgement iv
Abstract v
Table of Contents vi
CHAPTER ONE
1.0 Introduction 1
1.1 Aims and objectives 2
1.2 Significance of the project 4
1.3 Scope and limitation 4
CHAPTER TWO
2.0 Literature review on automatic change over switch 6
2.1 Review of related literature 6
2.2 Basic principle of automatic change over system 8
2.3 Types of change over system 9
2.4 Contactor 11
2.5 Timers 14
2.6 Circuit breaker 15
2.7 Indicator lamps 17
2.8 DMM 17
CHAPTER THREE
3.0 Design methodology 19
3.1 System block diagram 20
3.2 Contactor wiring diagram 22
3.3 Design diagram and analysis 23
CHAPTER FOUR
4.1 Result analysis 25
4.2 Casing and packaging 26
4.3 Assembling of sections 26
4.4 Construction of the casing 27
4.5 Testing and result 27
4.6 Problems encounter 29
4.8 Maintainability 31
CHAPTER FIVE
5.0 Conclusion 32
5.1 Recommendation 32
REFERENCES
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