Design and construction of an automatic phase selector
Table Of Contents
- Title Page – – – – – – – – – – i Dedication – – – – – – – – – – ii Approval page – – – – – – – – – iii Acknowledgement – – – – – – – – – iv Abstract – – – – – – – – – – v Table of Contents – – – – – – – – – viCHAPTER ONE: INTRODUCTION
- 1.1Background of the study – – – – – – 1
- 1.2Statement of problem – – – – – – 3
- 1.3Objectives of the study – – – – – – 3
- 1.4Scope and Limitation of the study – – – – 4
- 1.5Significance of the study – – – – – – 5
- 1.6Organization of the work – – – – – – 6CHAPTER TWO: LITERATURE REVIEW
- 2.1History of automatic control – – – – – 8
- 2.2Automatic phase selector (APS) – – – – – 9CHAPTER THREE: METHODOLOGY, DESIGN AND IMPLEMENTATION
- 3.1Introduction – – – – – – – – 12
- 3.2Power Supply Unit – – – – – – – – 14
- 3.3Voltage Sensing Unit – – – – – – – 17
- 3.4Switching Unit – – – – – – – – 19
- 3.5General Circuit Operation – – – – – – 21
- 3.6List of Components – – – – – – – 24CHAPTER FOUR: SYSTEM DESIGN ANALYSIS
- 4.1Power supply unit – – – – – – – 25
- 4.2Voltage Sensing Unit – – – – – – – – 29
- 4.3Switching Unit – – – – – – – – 31CHAPTER FIVE: PACKAGING, TESTING, RESULT AND DISCUSSION
- 5.1Packaging – – – – – – – – 33
- 5.2Testing – – – – – – – – 34
- 5.3Result – – – – – – – – – 35
- 5.4Discussion of result – – – – – – – – 35CHAPTER SIX CONCLUSION AND RECOMMENDATION
- 6.1Conclusion- – – – – – – – – 37
- 6.2Recommendation – – – – – – – – 38 References – – – – – – – – – 40
Thesis Abstract
This is the design and construction of an Automatic Phase Selector. In the construction work, LM324 integrated circuit (comparator) and 2N2222 transistors were used as active components alongside other passive components. The circuit components were mounted on a Vero board. Result shows that, when the three phase A.C inputs Red phase (P1), yellow phase (P2) and blue phase (P3) from public utility supply was fed to the system, the system compared the inputs with regards to phase imbalances, and the input with the highest voltage appears across the output. It also changes over from one phase to anothe4r immediately the circuit senses further phase imbalance.
Keywords Relay, Switch, Comparator, Phase Selector, Automatic.
Thesis Overview
Blazingprojects Mobile App
📚 Over 50,000 Research Thesis
📱 100% Offline: No internet needed
📝 Over 98 Departments
🔍 Thesis-to-Journal Publication
🎓 Undergraduate/Postgraduate Thesis
📥 Instant Whatsapp/Email Delivery
Related Research
A Framework for Circularity-Oriented Catalytic Process Design in Industry...
This research explores how catalytic processes in industry can be redesigned to support circular economy principles, reducing waste, conserving resources, and e...
A Dynamic Resilience-Based Framework for HR Transformation and Outcomes...
This research explores how organizations can make HR practices more resilient and dynamic in the face of rapid changes such as technology disruption, demographi...
A Farm-Province Adaptive Resilience Framework for Rural Households...
This research investigates how rural households connected to both farming and provincial markets build resilience to shocks and stresses. It addresses the gap b...
A Framework for Integrating Isotopic Signatures in Sedimentary Basin Thermochronolog...
This research explores how isotopic signatures can be integrated into thermochronology studies of sedimentary basins to better understand their thermal historie...
Cadre théorique pour l’évaluation éthique des IA en entreprise ...
This research explores how to build and apply a theoretical framework for evaluating the ethics of artificial intelligence (AI) used in business settings. It as...
A Resilience-Framing Framework for Urban Water–Energy–Waste Nexus Governance...
The research topic explores how cities can manage the interconnected systems of water, energy, and waste more effectively by using a resilience-framing framewor...
A Resilience-Framing Framework for Urban Environmental Management Systems...
This research explores a resilience-framing framework for urban environmental management systems, focusing on how cities plan for, respond to, and learn from en...
A Pragmatic-Narrative Alignment Model for Multilingual Interaction...
The research investigates how speakers manage meaning across languages in multilingual settings by proposing a Pragmatic-Narrative Alignment Model. It aims to e...
A Framework for Cross-Sensory Narrative in Contemporary Art Design...
A Framework for Cross-Sensory Narrative in Contemporary Art Design is about how artists combine multiple senses—such as sight, sound, touch, and even smell or...
