45 Pages
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4,655 Words
INTRODUCTION 1.1 THE BACKGROUND Welding is a way of heating pieces of metal using electricity or a flame so that they melt and stick together. It can simply be defined as the process of joining two or more pieces of metal to make the act as a single piece. This is often done by melting the work pieces and adding a filler material to form a pool of molten material that cools to become a strong joint. Because of its strength, welding is […]
28 Pages
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3,777 Words
This project is titled the design and construction of a DC to AC inverter system. It is designed to meet up with the power demand in the offices and in homes in the absence of power supply from the national supply authority, NEPA. In order words the device / item serves as a substitute for NEPA which almost monopolises the power supply to people. It is designed in such a way that it will take up 12v DC from battery and inverts it to an […]
31 Pages
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3,579 Words
INTRODUCTION All modern engineering system include certain aspects of control systems at some point in their broadcast sense, control engineering and the associated theory are concerned with the means by which systems may be made to behave an a desired way. The system on this thesis is a DC – AC converter, which is an apparatus which is used for conversion of Direct Current to Alternating Current or signal. In our country, this equipme […]
70 Pages
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8,363 Words
A 1.25KVA (2000W) inverter generator was designed, constructed and certified Ok. In this project, the design of the inverter generator is aimed at satisfying the need of converting, a D.C source of supply (12v battery) to an A.C voltage of 220v. The inverter range of output is between 200-220v. Since the inverter was designed to step-up voltage, the power transformer is being used as step-down transformer for charging and as step-up tr […]
43 Pages
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6,224 Words
A training device for instructing students in inverter circuits, which includes a large flat panel that is vertically disposed for visual display before the students, locations on the front surface of the panel for attachment of digital devices, `a number of digital-logic circuit devices having means for both mechanical and electrical connection to the panel, a power circuit associated with the panel for energizing the electronic devic […]
65 Pages
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10,343 Words
The aim of this project is to design and implement a single phase inverter which can convert DC voltage to AC voltage at high efficiency and low cost. Solar and wind powered electricity generation are being favored nowadays as the world increasingly focuses on environmental concerns. Power inverters, which convert solar-cell DC into domestic-use AC, are one of the key technologies for delivering efficient AC power. A low voltage DC sou […]
56 Pages
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9,669 Words
This project entails the design and construction of a pure sine wave inverter system, which generates a pure sine wave output identical to the mains supply. Unlike modified sine wave inverters, pure sine wave inverters produce a high-quality output that ensures proper functioning of high-end electronic equipment and smooth operation of appliances with reduced heat and noise. The pure sine wave inverter takes in 12V DC from a battery an […]