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Commutation failures are very frequent dynamic events in high voltage dc (HVDC) transmission systems. Commutation failure is mostly observed at the inverter side of HVDC links, where large firing angles are used. The minimum value of the extinction angle required for the proper operation of a valve is specified by the valve manufacturer; however,… Continue Reading
The document outlines an investigation done in order to study Fifth Generation (5G) systems and to identify a role that satellite systems will play in contribution to the many advanced and diverse demands on existing telecommunication networks. This next generation network is a build-up and phenomenal improvement in wireless communication… Continue Reading
Wireless power transfer (WPT) technologies have been widely used in many areas, e.g., the charging of electric toothbrush, mobile phones, and electric vehicles. This project introduces fundamental principles of three WPT technologies, i.e., inductive coupling-based WPT, magnetic resonant coupling-based WPT, and electromagnetic radiation-based WPT,… Continue Reading
A traffic light also known as a traffic signal, stop light and go light, robot or semaphore is a signally device positioned at four (cross) junction, pedestrian crossing or other locations in other to indicate when it is safe to drive or walk using a universal color code ( and in precise sequence for those that are color blind). Traffic… Continue Reading
The present invention relates to an improved control system for starting a three phase induction motor comprises improved power contactors configured to have a pair of three pole delta and main contactors, and a single pole star contactor for supplying AC power to star position and delta position, a timer for controlling AC power supply… Continue Reading
An induction or asynchronous motor is a type of AC motor where power is supplied to the rotor by means of electromagnetic induction, rather than by slip rings and commutators as in slip-ring AC motors. Single phase induction motor is the most familiar of all electric motors & they are similar to a 3-phase squirrel cage induction motor. It… Continue Reading
Contents TITLE PAGEi CERTIFICATION AND APPROVALii DEDICATIONiii ACKNOWLEDGEMENTiv ABSTRACTv TABLE OF CONTENTSvi LIST OF FIGURES viii CHAPTER ONE1 INTRODUCTION1 1.1: PROBLEM STATEMENT1 1.2: THE AIM AND OBJECTIVE OF THE CLAP ON-CLAP OFF SWICHT2 1.3: JUSTIFICATION OF THE RESEARCH2 1.4: LITERATURE REVIEW2 CHAPTER TWO5 THEORY AND PICTORIAL… Continue Reading
This is a project work using GSM Technology to control home appliances.… Continue Reading
Security Car Using RFID System. This project is designed to enhance vehicle safety systems available. Thus, this project consists of some combination of equipment and components to create a car security system that meets the security features and use more advanced. RFID (Radio Frequency Identification) is the most reliable way to… Continue Reading
The energy sector plays a major role in driving Kenya’s economy. The need to conceive, develop and sustain energy generating sources cannot be underestimated. Being a growing economy, Kenya therefore needs to redirect her effort in production of self-sustaining energy generating sources. It is in this line that the government through the… Continue Reading
Abstract The project DESIGN AND CONSTRUCTION OF A 20-METRE DISTANCE REMOTELY CONTROLLED METAL DETECTOR is used for detecting metallic objects such as phones, bombs, and other metallic objects that are hidden from view. The design is based on the principle of the Resonant Frequency Oscillator (RFO) metal detectors in which oscillation is… Continue Reading
This project deals with the design and development of restaurant order meal system, in order to reduce the number of staff. In meal ordering project, you can request for any kind of food or drinks available in the restaurant which contains the menu embedded in each button. Microcontroller is the central processing unit CPU of this project… Continue Reading
The aim of the project is to design a renewable energy system that can meet the current and projected electricity demands for the island of Great Cumbrae. This should be achieved by providing a stable electricity output and the meet the calculated total annual base load supply of 11.29 GWh. In addition to providing a stable supply of… Continue Reading
In this work, a 2.8kva alternator was coupled to a 4 H.P dc motor acting as a prime mover to produce a fuel-less generator. The coupling was done using two crankshaft pulleys to match the speed of the alternator to that of the dc motor. Two 24v dc deep cycle batteries were also used as the exciter unit and a sustainable output voltage of… Continue Reading
Cell phones need electric sources to charge their batteries in order to work, but there are people in developing and third world countries that find it hard to access electric sources.In an attempt to provide an alternative means of charging to those unfortunate areas in third world and developing countries, a solar powered cell phone… Continue Reading
Whenever we think of redefined security, we think of coded electrical door lock. It is a microcontroller based security door lock that can be used in homes, offices, laboratories, etc. for more reliable and high fidelity door control system, powered by electrons panel or electromechanical panels. Due to high rate of insecurity, especially… Continue Reading
Abstract This temperature control fan can be controlled using a microcontroller when it detects a certain temperature that has been set. The purpose of this project is to prevent the waste of voltage usage when it is not hot enough for fan to be needed. The temperature control fan has three different speeds. Each… Continue Reading
Research and optimization of cooling of electronic components using heat sinks becomes increasingly important in modern industry. Numerical methods with experimental real world verification are the main tools to evaluate efficiency of heat sinks or heat sink systems. In this research, the physical problems associated with heat removal of… Continue Reading
The aim of this project, the design and implementation of an RF communication link, is to design a communication link between a source and a destination and study the properties of the signal being generated by the source (generator). The area of interest in this work is how the signal suffers limitations like attenuation, interference… Continue Reading
Content Pages DECLARATION ii ACKNOWLEDGEMENT iii DEDICATION iv TABLE OF CONTENT v CHAPTER ONE Introduction 1 1.1 Background of the Study 1 1.2 Problem of Study 2 1.3 Objectives of Study 3 1.4 Scope of Study 3 1.5 Significance 4 CHAPTER TWO Literature Review 5 2.1 Introduction 5 2.2 Types of Street Lights 6 2.3 Photovoltaic Effect/Process 9… Continue Reading
ABSTRACT Nowadays, there is an increase in the demand to connect to the internal networks of organizations by their branches from distant locations. Members of such organizations often need to access internal networks from their homes, hotels or other far away business places and external networks over the internet which is insecure by… Continue Reading
The AVR is an automatic voltage regulator and it is a device which is used to regulate or stabilize electrical power supply for electrical or electronic appliances. Inthisprojecttherefore,weareinterestedintheconstructionof this allimportantdevice.Furthermore we shalldiscuses the techniques,processes,switching stages and then the working… Continue Reading
A power transformer is a very simple device. It is a vital link in the electronic distribution system. A power transformer is associated with faults. The design and construction of the phase fault detector is to provide simple, reliable and comprehensive electrical phase fault detections and response system. The system … Continue Reading
This Project present the design and construction of a microcontroller based under and over voltage protection device, which is achieved using a microcontroller, transistor and other discrete components. A microcontroller PIC16F877A is at the heart of the device which performs the major control of the device. The device is simple and low cost. It… Continue Reading