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TABLE OF CONTENTS
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CHAPTER
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TITLE
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PAGE
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TITLE PAGE
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i
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DECLARATION
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ii
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APPROVAL
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iii
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ACKNOWLEDGEMENTS
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iv
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ABSTRACT
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v
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TABLE OF CONTENTS
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vii
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1
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INTRODUCTION
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1
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1.1
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Project
Background
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1
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1.2
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Project
Statment
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2
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1.3
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Objective
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2
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2
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LITERATURE REVIEW
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3
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2.1
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Project
Background
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3
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2.2
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Development
of Achitecture
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4
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2.3
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Summary
of Literature Review
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5
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3
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METHODOLOGY
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7
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3.1
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Electronic
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7
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3.1.1 Power Supply
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7
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3.1.1.1 Step Down Transformers
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7
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3.1.1.2 Bridge Rectifier
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10
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3.1.1.3 Filter
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13
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3.1.1.4 IC Regulator (LM7805)
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16
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3.1.2 Micro-Chip AD7755
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19
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3.1.3 Micro-Chip PIC16f877a
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22
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3.1.3.1 Introduction
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22
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3
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3.1.3.2 Micro controller use in the project
PIC16f877A
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23
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3.1.4 Liquid
Clear Display (LCD)
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25
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3.1.5 Keypad 3x4
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26
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3.1.5.1 MM74C922
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27
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3.1.6 Relay
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28
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3.1.6.1 ULN2003
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30
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3.1.7 Buzzer
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31
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2.5 cm
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3.2
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Electrical
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32
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3.2.1 Single Phase Meter
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32
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3.2.1.1 Driving system
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33
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3.2.1.2 Moving system
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34
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3.2.1.3 Braking system
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34
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3.2.1.4 Registering or Counting system
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35
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3.2.2 Distribution Board
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36
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3.2.2.1 Electrical protective device
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36
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3.2.2.1.1 Switch fuse
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38
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3.2.2.1.2 RCCB
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39
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3
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3.2.2.1.3 MCB
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41
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3.2.2.1.4 Load
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43
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3.3
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Software
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3.3.1 MPLAB IDE v8
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44
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3.3.2 HI-Tech C
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44
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3.3.3 Proteus
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45
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4
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MONTHLY ELECTRIC BILL SAVING SYSTEM
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46
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4.1
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Block diagram
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46
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4.2
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Flow chart
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47
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4.3
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The body of MEBSS
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48
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4.4
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Programming code of MEBSS
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50
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4.4.1 Main
Body Program
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50
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4.4.2 The
Sub-function
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51
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4.5
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Problem
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65
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4.5.1 Earth Fault
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65
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4.5.2 Heating Transformers
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66
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4.5.3 Neutral have power
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67
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3
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5
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RES
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ULT
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5.1
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Circuit diagram
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68
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5.1.1 Power supply
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68
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5.1.2 Energy ic AD7755
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69
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5.1.3 PIC16f877a
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70
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5.2
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Result Simulation
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71
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2.5 cm
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6
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CONCLUSION
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75
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6.1
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Summary
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75
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7
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AP
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PENDIX
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76
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