DESIGN AND CONSTRUCTION OF 5KVA SINE WAVE INVERTER

0
548

CHAPTER ONE

INTRODUCTION

Introduction of this project is all about power inverter system.

Power inverter system is a device used to convert a direct current (d.c) supply into an alternating current (a.c) power supply by an invertion process.

Power inverter system is used as an uninterrupted power supply to where there is constant power outage from the national grid.

It is also used as a power source where there is no power from the national grid.

The power inverter system is used to supply power to our electrical appliances at home and also in our industries, it is of different types and categories. The types are.

  1. Pure sine wave power inverter
  2. Modified sine wave inverter
  3. Square wave power inverter etc.

While they are categories as

  • 300VA
  • 500Va
  • 1000VA = 1KVA
  • 1500VA = 1.5KVA
  • 2000VA = 2KVA
  • 5000VA = 5KVA etc
  1. Background of the study

This project is basically on power inverter system which we use to convert D.c power supply to a.c for home and industrial use.

Development of power inverter system became necessary because of the power failure that occurs sometimes form national power supply.

Electricity is one of the greatest inventions man has ever made, due to its very important It is a well known fact today that electrical power supply is not reliable. All over the world, there is a significant electrical power supply interruption. Because of these electrical power supply interruption, many electrical instruments have this developed problems or even stopped working entirely. Hence this crippled much business thereby affecting many countries economy as Nigeria. Also there is increase in occurrence of power supply disturbance, which can be viewed as a form of power pollution. High voltage spikes and momentary voltage drops are therefore common. These power disturbance may affect the performance of of sensitive equipment in private and corporate organization causing loss of data and even damage to equipment.

In Nigeria today, it is not an overstatement to talk about the epileptic supply of electrical power. This has become the order of the day such that many Nigerians now view these power outages as “normal” and part of their daily life. A wide range of factors has been identified for this problem. They include natural disasters, vandalism, maintainability and sustainability and lack of local content. The problem of poor quality power supply cannot be properly addressed without a review of other factors such as lack of political will to invest adequately in power sector, absence of replacement policy resulting in obsolete equipment, unsustainable human capacity building and inadequate reward and remuneration system to motivate human resources to perform well.