The document summarizes an engineering seminar presentation about electromagnetic clutch systems. It introduces the topic, explaining that electromagnetic clutches operate electrically but transmit torque mechanically. It then discusses the specifications, principles, workings, engagement time, advantages, disadvantages, and applications of electromagnetic clutches. The presentation was given by Mr. Shubham Dattatra Ladkat and guided by Prof. V. D. Sapkale.

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Department Of Mechanical Engineering
KJEI’S Trinity Academy of Engineering Pune
A Seminar On
Electromagnetic Clutch System
By
Mr. Shubham Dattatra Ladkat
Under the Guidance of
Prof. V. D. Sapkale

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Introduction
 Warner Electric designed the first electromagnetic clutch.
 Electromagnetic clutches operate electrically but transmit torgue
mechanically.
 That’s the reason we also called electromechanical clutches.

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E. M. Specifications
 Engagement & disengagement is electrically operated.
 No linkages are required to control it’s engagement
 Easy to handle
 High torque to size ratio.
 Response is fast.

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Principle Of E. M. Clutch
 E. M. Clutch is simply based on electro-magnetism.
 Magnetic fields are produced due to circulation
 Of electric current in conducting coils.
 Direction of magnetic field can be obtain.
by “right hand rule”

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Working of E. M. Clutch
 Working conditions..
1. D.c source
2. Voltage supply should be same as clutch rating.
3. Constant /non fluctuating power supply.
4. Maintains almost constant operating temperature.

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Working of E. M. Clutch

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Engagement Time
 There are two engagement time to consider.
1. Time take for coil to develop the magnetic field to pull armature
.
 No. Of turns on coil
 Air gap between armature and roroto
2 .Response time of clutch(time to speed).

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Advantages Of E. M. Clutch
 Complicated linkage is not required.
 Wear & tear s almost eliminated.
 Requires less current with no load condition.
 It can work on 24 V D. C. with low wattage.

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Disadvantages of E. M. Clutch
 Risk of overheating during engagement.
 High initial cost.
 If the current falls, torque will also decreases.

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Application of E. M. Clutch
 Machinery.
e. g. Printing machinery, conveyors, lawnmowers etc.
 Automobiles
e. g. Outdoor use, in some Renaults cars.
 Locomotive.
e. g Diesel locomotives.

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Reference
 https://www.mechanicalproject.com
 http://www.seminaronly.com
 http://www.emclab.umr.edu