Design and implementation of automatic three phase selector switch

Thesis Overview

<p> </p><p>INTRODUCTION<br>1.0 BACKGROUND OF THE SEMINAR</p><p>Initially, 3-phase voltage selector system invented manually with operating process of time wasted and inconvenience. The interest of automatic 3-phase voltage selector system is on the fact that technology advancement has made it possible to minimize cost, hard labor and time wasted, and also improves the reliability of our electrical and electronics system. Therefore with the help of electromechanical switching system through the principle of solenoid, a system has been designed such that electromechanical device like a relay and contactor is arranged to automatically change from one phase to other without human intervention. This design is of high efficiency and very accurate in its performance, this is because switching is done by automation without time delay. The 3-phase automatic voltage selector system uses reliable electrical/electronics components such as relay transformers, contactor, diode capacitor, resistor and other switching component.<br>The operation of this device is that when there is a failure in any of the each line thereby leading to a no output voltage, it select automatically to other phase without time delay. This project is applicable in homes, factories, corporate offices and commercial business center. This system also transfers maximum power to the load.</p><p><strong>1.1 AIMS AND OBJECTIVES OF THE SEMINAR</strong></p><p>The objective and aim of this research is as follows:<br>I. To select automatically a voltage that is present in power line.<br>II. To avoid stress and inconvenience in selecting of phase voltage.<br>III. To build a system that can be able to choose any voltage that appear to be of high potential among other voltage.</p><p><strong>1.3 LIMITATION OF THE SEMINAR</strong></p><p>The hindrance encountered on this research work are:<br>· Financial Crises<br>· High cost of material/component.<br>· Research group misunderstanding<br>· Physical stress<br>· Miscalculation<br>The hindrances encountered on this research work is<br>Financial crises<br>High cost of material/component<br>Research groups misunderstanding<br>Physics stress<br>Miscalculation<br>Financial Crises: Financial crises will also contribute to the problem encountered on this research work, financially, the money won’t be available to buy all the component and material needed to construct this project due to human want.<br>High cost of material/component: Based on high cost of materials/component.<br>It can also be a reason for a student not to embark on this project rather, it will also look for the one it material is low.<br>Research group misunderstanding: In any group of people or organization there must be a dispute between them. This can be another issue that can cause a hindrance to this research work.<br>Physical stress: Not everyone has the opportunity or the physical stress to embarked on this project based on time, opportunity and physical fitness.<br>Miscalculation: Mathematically, miscalculation can cause a problem in a group base on financial issue.</p> <br><p></p>