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INTRODUCTION TO MACHINERY PRINCIPLE

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by

Abu Ammar

on 8 December 2014

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Transcript of INTRODUCTION TO MACHINERY PRINCIPLE

Learning Outcome
Understand the
fundamental laws
in the
dynamic magnetic systems
and their relation to the
electrical machines.

The Magnetic Field Principle
What is an Electrical Machine?
Equipment that is able to
convert
either
mechanical energy
to
electric energy
, or
electric energy to mechanical energy.

The process is also known as
electromechanical energy conversion.

INTRODUCTION TO MACHINERY PRINCIPLE
Power Concept
By:
Mohd Fakhizan Romlie, PhD
Email: fakhizan.romlie@petronas.com.my

Magnetic field produces
when
current flow
in a wire
A
time changing magnetic field

induces voltage
in a coil of wire if it is passes through the coil.
Basis of transformer
“A
current-carrying wire
in the presence of
magnetic field
has
force induced
on it” (Basis of
motor
)

A
moving wire
in the presence of a
magnetic field
has a
voltage induced
in it” (Basis of
generator
)

Faraday’s Law

Ampere’s Law

Electromagnetic Force
(Lorentz force)
Second Newton’s Law

In Electrical Machines
The Magnetic Field
Production of Magnetic Field
Magnetic Circuits
Example
Magnetic Behavior of Ferromagnetic Material
Energy Loss in a Ferromagnetic Material
Hysteresis Loss
Eddy Current Loss
Hysteresis Loss
Eddy Current Loss
Full transcript