Applications Of Magnetic Fields

7/29/2019 Applications Of Magnetic Fields

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Presented by:-

V V SATYA SAI KIRAN KUSUMANCHI


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MAGNETIC FIELD:-

A condition found in the region around amagnet or an electric current, characterized

by the existence of a detectable magnetic

force at every point in the region and by

the existence of magnetic poles. A region of space near a magnet, electric

current, or moving charged particle in

which a magnetic force acts on any other

magnet, electric current, or moving

charged particle.


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There many applications in our day to day life some of them are

Motor

Maglev trains Mass Spectrometer etc..


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Maglev is the shortened form of the phrase

MAGNETIC LEVITATION.

MAGNETIC LEVITATION is a way of using

magnetic fields to levitate with out any noise or the

need of the liquid fuel or air Thus maglev means floating of one magnet over the

other.


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The different technologies or the

methods for achieving the magneticlevitation are many. Some of them are:-

Germanys TRANSRAPID system

By using diamagnets and permanentmagnets

By using super conductors technology.


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The magnetic levitation of train acts with the LONG STATORLINEAR MOTOR (LLM) which is situated beneath the guide way.

As the levitation is achieved the problem rolling friction is kept off.

The propulsion magnet is fixed to the guide way or the track to whic

the continuous 3-phase power supply has to be given


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Cut open stator is

LLM


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Transrapid 6

Transrapid 7


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Comparison of

long statormotor with the

stator of the 3-

phase AC motor


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The rotor section of the motor is like wise comparable to

have been unrolled and attached to the levitation system

of vehicle

This technique means that the vehicle and guide way

form the single unit .


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In this way the vehicle is acceleratedor decelerated by inducing 3-phase

current in LLM which creates a

travelling magnetic field

The speed of the vehicle isdetermined by the frequency (in Hz)

of the current in the LLM, Which in

turn determines the speed of the

travelling magnetic field


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Notable consequences in the

maglev trains: The drive system isn't installed in the vehicle ,

instead its in the guide way so the maximum

acceleration & speed for the duration ofjourney can be planned in advance through

Prior adjustment

The speed ranges from the 500-550 kmph in

normal planes


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Control Systems: There are no signalling

systems for high or low speed maglev systems.

There is no need since all these systems are

computer controlled. Besides, at the extremely

high speeds of these systems, no human operator

could react fast enough to slow down or stop in

time. Two maglev system microwave towers are

in contact with an EMS vehicle at all times for

two-way communication between the vehicle

and the central command centre's mainoperations computer. There are no need for train

whistles or horns, either.


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PPT BY:

KUSUMANCHI V V SATYA SAI KIRANREG NO:-1210511232

EMAIL:[email protected]

CONTACT:9492831730DEPT:EEE

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Applications Of Magnetic Fields