Abstract
The uninterrupted power is only dedicated for the purposed of illumination. Light is so important to man, so there is need to build an emergency lightening system to help reduce the problem encounter due o frequent interrupted power failure. This is reason for this project report which is CONSTRUCTION OF AUTOMATIC EMERGENCY LIGHTING SYSTEM. These project forms a stand-by source of light energy to man, it operates with the principles that when there is power failure the system will automatically switch on a lamp being power by A.D.C source (battery) when there is poor power supply from the main lamp goes off and the battery begins to charge using a rectifier circuit. Furthermore, this also emphasis on the battery level sensor, when incorporated and the battery level when drops out that will affect the entire systems and this led to high capacity battery to be introduce to the system.
Table of contents
Title page i
Certification ii
Dedication iii
Acknowledgement iv
Table of contents v
Abstract vii
CHAPTER ONE
1.0 Introduction 1
1.1 Background of the study 1
1.2 Statement of the problem 3
1.3 Objective of the study 4
1.4 Significance of the study 4
1.5 Scope f the study 5
1.6 Research questions 5
CHAPTER TWO
LITERATURE REVIEW
2.0 Description/citation 6
2.1 The transformer 7
2.2 Relay 8
2.3 The battery 9
2.4 Resistor 10
2.5 Diodes 12
2.6 Light emitting diode (LED) 13
2.7 Capacitor 14
2.8 Lamp 15
CHAPTER THREE
3.0 Circuit and principle of operation 16
3.1 Block diagram and description 16
3.2 Circuit diagram and description 17
3.3 Principle of operation 18
3.4 Conclusion 20
References 21
The uninterrupted power is only dedicated for the purposed of illumination. Light is so important to man, so there is need to build an emergency lightening system to help reduce the problem encounter due o frequent interrupted power failure. This is reason for this project report which is CONSTRUCTION OF AUTOMATIC EMERGENCY LIGHTING SYSTEM. These project forms a stand-by source of light energy to man, it operates with the principles that when there is power failure the system will automatically switch on a lamp being power by A.D.C source (battery) when there is poor power supply from the main lamp goes off and the battery begins to charge using a rectifier circuit. Furthermore, this also emphasis on the battery level sensor, when incorporated and the battery level when drops out that will affect the entire systems and this led to high capacity battery to be introduce to the system.
Table of contents
Title page i
Certification ii
Dedication iii
Acknowledgement iv
Table of contents v
Abstract vii
CHAPTER ONE
1.0 Introduction 1
1.1 Background of the study 1
1.2 Statement of the problem 3
1.3 Objective of the study 4
1.4 Significance of the study 4
1.5 Scope f the study 5
1.6 Research questions 5
CHAPTER TWO
LITERATURE REVIEW
2.0 Description/citation 6
2.1 The transformer 7
2.2 Relay 8
2.3 The battery 9
2.4 Resistor 10
2.5 Diodes 12
2.6 Light emitting diode (LED) 13
2.7 Capacitor 14
2.8 Lamp 15
CHAPTER THREE
3.0 Circuit and principle of operation 16
3.1 Block diagram and description 16
3.2 Circuit diagram and description 17
3.3 Principle of operation 18
3.4 Conclusion 20
References 21