CONSTRUCTION OF A SIMPLE DYNAMO

ABSTRACT
Dynamo is the name given to D.C generators. In the past, alternating current generators are not common. Voltages are generated using dynamo where the voltage generated are later converts to A.C. The dynamo I constructed had a permanent magnet. This magnet in the form of circular disc which revolves around turns of coil that is wound on a u-shaped former. When the disc is rotated the magnetic field North / South pole cuts lines of force and e.m.f is generated.


TABLE OF CONTENTS
Title page
Table of content
Chapter one
Introduction        
Background of the study
Statement of the problem
Aims and objectives
Significance of the study
Scope of the study
Chapter Two
Literature review
A brief history of dynamo
Commutator (Electric)
Chapter three
Materials and methods
Sources of materials
Description of a dynamo
Circuit diagram
Block diagram
Chapter Four
Chapter Five
Reference  

CHAPTER ONE
INTRODUCTION
1.0  BACKGROUND OF THE STUDY
The word Dynamo from “(from the Greek word dynamics: meaning power) was originally another name for an electrical generator and still has some regional usage as a replacement for the word generator. After the discovery of the AC generator and that alternating current can be used as a power supply. The word dynamo became associated exclusively with the communicated direct current electric generator while on AC electrical generator using either ship rings or rotor magnet would become known as an alternator.
A dynamo is an electrical generator that produces direct current with the use of a commutator. Dynamos were the first electrical generators capable of delivering power for industry and the foundation upon which many other later electric power conversion devices were based including the electric motor, the alternating current alternator and the rotary converter. Today the simple alternator dominates large scale power generation for efficiency, reliability and cost reasons.
A dynamo has the disadvantages of a mechanical commutator besides; converting alternating current to direct current using power rectification devices (vacuum tube or more recently solid state.) is effective and usually economical.
The faraday disk was the first electric generator. the horseshoe shape magnet (A) created a magnetic field through the disk (D) when the disk centers toward the rim. The current flowed out through the sliding  spring contact m, through the external circuit and back into the centre of the disk through the axle. The operating principle of electromagnetic generators was later called Faraday’s law, is that an electromotive force is generated in an electrical conductor which encircles a varying....

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Item Type: Project Material  |  Attribute: 43 pages  |  Chapters: 1-5
Format: MS Word  |  Price: N3,000  |  Delivery: Within 30Mins.
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