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Design And Construction Of 5kva Power Inverter
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CHAPTER ONE
INTRODUCTION
1.1 BACKGROUND OF THE STUDY
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.
According to the
recommendation made by the institute of Electrical Electronics
Engineering (IEEE), the supplies that should be available for use should
be continues, uninterrupted with constant frequency and within the load
determine in terms of voltage and current. These requirements have
become even more relevant in view of the high sensitivity and
sophistication of modern technological equipment in use today.
The
progress made in developing alternate source of energy over the last
decades has showed that independent power systems are not only possible
but also very practical. Infact a wide variety of generating equipment
is now available to allow individuals take advantage of just any
renewable source of energy, for number reasons however, most of these
systems produce only direct current (DC) and often do so only at low
voltage. Nonetheless, it is generally agreed that the greatest and most
useful form of current is the alternating current (AC) since this exists
in the vast majority of homes.
Therefore, there arises the need to
able to convert Direct Current (DC) to Alternating Current (AC) that
will be of a constant frequency and also be used to power electrical
circuits either in homes or in industries. Such electrical device is
called an inverter.
An inverter is an electrical device that converts
direct current (DC) to alternating current (AC), the converted A.C. can
at any required voltage and frequencies, with the use of appropriate
transformer, switching and control circuit. Inverters are common used to
supply A.C. power from DC sources such as panels or batteries.
The
electrical inverter e.g. 5KVA, 220 – 240, 50Hz is high power electronic
oscillator. It is also named because early mechanical AC to DC
converters where made to work, in reverse and thus are “inverted†to
convert D.C. to A.C. the inverter performs the opposite function of a
rectifier.
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ABSRACT - [ Total Page(s): 1 ]This project review the conformability of uninterrupted power supply through the use of power inverter, However, inverter is of different categories base on power rating such as 1KVA, 1.5KVA, 5KVA etc. Moreover, since the invention of inverter, some problem associated with alternative power supply had been drastically reduced. Meanwhile, the problems such as: noise, production of fumes cost of procurement of oil, fuel and maintenance of plant is over. ... Continue reading---
