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Download the complete Electrical Engineering project topic and material (chapter 1-5) titled Construction of digital ac power controller here on PROJECTS.ng. See below for the abstract, table of contents, list of figures, list of tables, list of appendices, list of abbreviations and chapter one. Click the DOWNLOAD NOW button to get the complete project work instantly.
The Project File Details
The desire for power to be controlled by means of phase angle variation of the conduction period brought about a digital ac power controller. Controlling the phase angle can be made simple and easy if we set different firing times corresponding to different firing angles. The circuit can be used as power controller in lighting equipment, hot air equipment, universal single phase ac motor, heater, etc. This project is aimed at constructing the circuit with necessary modification to serve this purpose.
Certification page
Abstract
Acknowledgement
Dedication
Table of content
CHAPTER ONE
1.0 Introduction
1.1 Features and Benefits of Scr’s
1.2 Advantages
1.3 Disadvantages
1.4 Scope of the Study
CHAPTER TWO
Methodology
2.1 Designing
2.2 Construction
2.3 Composition Components/Types of Components And Their Uses
2.3.1 Integrated Circuit
2.3.2 Traic
2.3.3 Diode
2.3.4 Capacitors
2.3.4.1 Capacitors Symbols
2.3.4.2 Classification Of Capacitors
2.3.5 Resistors
2.3.5.1 Resistor Symbol
2.3.5.2 Classification Of Resistor
2.3.6 Transistors
2.3.7 Oscillator
2.3.7.1 Crystal Oscillator
2.3.8 Micro-Controller
CHAPTER THREE
Circuit Operation And Construction
CHAPTER FOUR
Conclusion
1.0 Introduction
SCR power controllers were first developed in the late 1950’s. Originally available with ratings of only a few hundred amps and low voltage, the SCR power controller has steadily increased, the number of potential applications has increased as well. In fact, nearly every industrial process that uses process heating equipment can employ SCR power controllers.
SCR power controllers provide a relatively economical means of power control. SCR power controllers cost less and more efficient than saturated core reactors and variable transformers, compared to contractors, SCR power controllers offer a much finer degree of control and do not suffer from the maintenance problems of mechanical devices.
1.1. FEATURES AND BENEFITS OF SCR’S
1.2 ADVANTAGES
The advantages of SCR power controls outweigh the disadvantages. The biggest advantages are high reliability and low maintenance requirement. Because the SCR is a solid state device, there are no moving parts to wear. Simply keeping it clean and cool, provides users with many years of reliable service. Another advantage is control options with on/off electro mechanical contractor, an SCR provides fast response and high resolution as well as the ability to limit current and regulate load voltage, current or power.
1.3 DISADVANTAGES
1.4 SCOPE OF THE STUDY
The scope of the study of this project work is describes as listed below.
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