ABSTRACT
Despite all attempt of the federal government to have not only an uninterrupted power supply for all cities in Nigeria, but a voltage that is inconformity with the recommended 220/230v for domestic consumption for example. The NEPA Plc is facing some difficulties in generating, transmitting and distributing the required voltage stabilizer, which could be connected, to the main and then the load is in turn connected to it.
This automatic, AC voltage stabilizer has two major sections.
The transformer section, the control circuit unit the third section is the protective unit.
The output of this voltage stabilizer after series of test were performed on it has a voltage 228 + 12 at an overall output power of 1.5 KVA.
TABLE OF CONTENTS
TITLE PAGE
CERTIFICATION
DEDICATION
ACKNOWELDGEMENT
TABLE OF CONTENTS
LIST OF TABLE
ABSTRACT
CHAPTER ONE
1.0INTRODUCTION
1.1THE TRANSFORMER UNIT
1.2THE CONTROL CIRCUITING
CHAPTER TWO
2.0LITERATURE REVIEW
2.1HISTORY OF THE PROJECT
2.2THE POWER SUPPLY
2.3THEORY OF TRANSFORMER
2.4OPERATION OF THE TRANSFORMER
2.5VOLTAGE TRANSFORMATION RATION
2.6TRANSFORMER LOSSES
CHAPTER THREE
3.0THE CONTROL CIRCUITING
3.1TRANSISTORS
3.2RELAY
3.3THE CONTROL UNIT
3.4THE POWER SUPPLY UNIT
3.5VOLTAGE DIVIDER
CHAPTER FOUR
4.0DESIGN ANALYSIS
4.1DESIGN FO A TRANSFORMER
4.2DESIGN OF THE TRANSFORMER PROPER
4.3CONTROL CIRCUIT DESIGN
4.4DESIGN CALCULATION
4.5PRINCIPLE OF OPERATION
CHAPTER FIVE
5.0CONSTRUCTION AND TESTING OF THE TRANSFORMER
5.1SHORT CIRCUIT TEST
5.2TESTING OF THE TRANSFORMER
5.3OPEN CIRCUIT TEST
5.4SUMMARY
5.5CONCLUSION
5.6RECOMMENDATIONS
5.7REFERENCES
