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Design And Construction Of Uninterruptible Power Supply
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- Pages: 85
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- Chapters: 1-5
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Power Supply
ABSTRACT
The uninterrupted power supply (UPS) is design to help in the offices, workshops and house hold appliances, due to the unstable power supply being supplied by (NEPA) presently known as Power Holding Company of Nigeria (PHCN) usually supply to us.
With the help of the UPS we don’t need to depend much on PHCN it is stress free because it don’t need someone to change it over when light goes off, once there is any power failure it will automatically switched on and when power comes it will switch off and start charging the battery.
Another interesting thing in the UPS is that it does not need any external charger for charging the battery when it goes low, it have already built charger inside the UPS when there is light it will be charging the battery.
TABLE OF CONTENTS
COVER PAGE
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWLEDGEMENT
ABSTRACT
TABLE OF CONTENTS
CHAPTER ONE
INTRODUCTION
INVERTER SECTION/OSCILLATION
AUTOMATIC CONTROL SECTION
AIM OF THE DESIGN
CHAPTER TWO
DEFINITION OF TERMS/COMPONENTS DESCRIPTION
RESISTORS
CAPACITORS
TRANSISTORS
FIELD EFFECT TRANSISTORS
RELAYS
DIODE
CHAPTER THREE
SECTIONAL DESCRIPTION FOR THE SYSTEM
OSCILLATION CIRCUIT SECTION
CIRCUIT OPERATION
WAVEFORM OF AN OSCILLATION
WAVEFORM OF AN INVERTER
SWITCHING CIRCUIT SECTION
POWER TRANSFORMER AND INVERTER ACTION
PRECAUTION DURING WINDING OF TRANSFORMER
AUTOMATIC CIRCUIT SECTION/CHARGER
COMPLETE CIRCUIT DIAGRAM OF THE UPS
CHAPTER FOUR
CONSTRUCTION PROCEDURE AND TESTING
CASING AND PACKAGING
ASSEMBLING OF SECTIONS
TESTING OF SYSTEM OPERATION
CHAPTER FIVE
PROBLEMS ENCOUNTERED, CONCLUSION AND RECOMMENDATION
PROBLEMS ENCOUNTERED
RECOMMENDATION
CHAPTER SIX
COST ANALYSIS
REFERENCES
