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Design And Construction Of A 60a Three Phase Automatic Changeover Switch Using Comparactor
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TABLE OF CONTENTS
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRCT
TABLE OF CONTENT
CHAPTER ONE
1.1 INTRODUCTION
1.2 AIM/OBJECTIVE OF THE PROJECT
1.3 SIGNIFICANCE OF THE PROJECT
1.4 APPLICATION OF THE PROJECT
1.5 LIMITATION OF THE PROJECT
1.6 ADVANTAGES OF THE PROJECT
1.7 SCOPE OF THE PROJECT
1.8 PROJECT ORGANIZATION
CHAPTER TWO
LITERATURE REVIEW
2.1 REVIEW OF CHANGEOVER
2.2 HISTORICAL BACKGROUND OF AN AUTOMATIC CHANGEOVER
2.3 REVIEW OF ELECTRICAL PHASES
2.4 REVIEW OF THREE-PHASE ELECTRIC POWER
2.5 POWER SUPPLY UNIT
2.5.1 THE RECTIFYING UNIT
2.5.2 THE SMOOTHING UNIT
2.5.3 THE REGULATOR AND REGULATED
CHAPTER THREE
3.0 CONSTRUCTION METHODOLOGY
3.1 BLOCK DIAGRAM OF THE SYSTEM
3.2 CIRCUIT DIAGRAM
3.3 CIRCUIT DESCRIPTION
3.4 SYSTEM OPERATION
3.5 DESCRIPTION OF MAJOR COMPONENTS USED
CHAPTER FOUR
4.0 RESULT ANALYSIS
4.1 CONSTRUCTION PROCEDURE AND TESTING
4.2 CASING AND PACKAGING
4.3 ASSEMBLING OF SECTIONS
4.4 TESTING OF SYSTEM OPERATIONOBSERVATIONS
4.6 DIFFICULTIES ENCOUNTERED ON THE SYSTEM
4.7 PICTURE OF THE SYSTEM AFTER CONSTRUCTION
4.7 COST OF PRODUCTION
CHAPTER FIVE
5.1 SUMAMRY
5.2 CONCLUSIONS/SUGGESTIONS
5.3 REFERENCES
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ABSRACT - [ Total Page(s): 1 ]This project work is on the design and construction of a 60A automatic changeover for 3-phase power supply. It provides a means of switching from one phase of AC mains to another in the case of failure in the existing phase; This project has been improved on the existing types of electromechanical device that has being in use over the years. Hence this has been achieved by the use of operational amplifier, timing circuit and high current relay switches and it is powered by 12V dc power supply.T ... Continue reading---
CHAPTER ONE - [ Total Page(s): 1 ]INTRODUCTIONIn Nigeria today the problems of power outage across phases is so rampant thus leading to some sensitive equipment and appliances being redundant, this could sometimes be the cause of one phase going out with respect to the other.It may surprise one to note that in an attempt to solve this problems, so many unskilled electricity consumers has in recent past resorted to some crude means of swapping between phases to obtain power. So many souls have been lost in this act. This is an ... Continue reading---
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ABSRACT - [ Total Page(s): 1 ]This project work is on the design and construction of a 60A automatic changeover for 3-phase power supply. It provides a means of switching from one phase of AC mains to another in the case of failure in the existing phase; This project has been improved on the existing types of electromechanical device that has being in use over the years. Hence this has been achieved by the use of operational amplifier, timing circuit and high current relay switches and it is powered by 12V dc power supply.T ... Continue reading---
TABLE OF CONTENTS -- [Total Page(s) 1]
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TABLE OF CONTENTS -- [Total Page(s) 1]
Page 1 of 1