Industrial Ac Machines detailed Syllabus for Electrical Power System (EP), I – scheme has been taken from the MSBTE official website and presented for the diploma students. For Subject Code, Subject Name, Lectures, Tutorial, Practical/Drawing, Credits, Theory (Max & Min) Marks, Practical (Max & Min) Marks, Total Marks, and other information, do visit full semester subjects post given below.
For all other Diploma in Electrical Power System (EP) Syllabus for 5th Sem I – Scheme MSBTE, do visit Diploma in Electrical Power System (EP) Syllabus for 5th Sem I – Scheme MSBTE Subjects. The detailed Syllabus for industrial ac machines is as follows.
Rationale:
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Competency:
The aim of this course is to help the student to attain the following industry identified competency through various teaching learning experiences:
- Use relevant Induction, Synchronous and FHP Machines for different electrical engineering applications.
Course Outcomes:
The theory, practical experiences and relevant soft skills associated with this course are to be taught and implemented, so that the student demonstrates the following industry oriented COs associated with the above mentioned competency:
- Use the relevant three phase induction motor (IM) for different applications.
- Use the relevant single phase induction motors in different applications.
- Use the relevant three phase alternator for different load conditions.
- Use suitable synchronous motors in different applications.
- Use suitable Fractional HP motors for different applications.
Suggested Exercises:
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Instruments Required:
The major equipment with broad specification mentioned here will usher in uniformity in conduct of experiments, as well as aid to procure equipment by authorities concerned.
Equipment Name with Broad Specifications
- Induction motors 3 hp/ 5hp, 415 V, 50 Hz, 1440 RPM squirrel cage type
- Induction motors 3 hp/ 5hp, 415 V, 50 Hz, 1440 RPM slip ring type.
- Ammeters MI Type: AC/DC 0-5-10Amp
- Voltmeter MI Type: AC/DC, 0-150/300V, 0-250/500V
- Wattmeter: Three phase double element 5/10Amp, 250/500V
- Wattmeter: Single phase, single element 2 5/5Amp, 200/400V,
- Low power factor wattmeter : Single phase, 2 5/5Amp, 250/500V
- Auto transformer: 3-phase, 5kVA, 0 to 500V.
- Load bank: Resistive, 3-phase, 5kW, 415V
- Load bank: inductive, 3-phase, 2 to 5kVAR, 415V
- Load bank: capacitive, 3-phase, 2 to 5kVAR, 415V
- Star- delta, auto transformers starters
- Clip on meter ( amp, volts) digital/analog
- Digital multimeter4 A digit with standard make for measurements
- Tachometers: contact and non-contact types: 100 to 10000 RPM
- Brake load or other suitable means to load motors with suitable measurement facilities of powers (mechanical)
- 3 phase alternator: 5kVA, 415 V, 50 Hz, 4 pole, 1500 RPM
- 3 phase synchronous motor: 3hp, 415 V, 50 Hz, 1500 RPM
Unit 1
Three Phase Induction Motor
Total Teaching Hours – 18
Distribution of Theory Marks
R Level – 02
U Level – 08
A Level – 10
Total Marks – 20
Unit Outcomes (UOs) (in cognitive domain)
- Explain with sketch working of the given three phase induction motor.
- Explain with sketch construction of the given type of three phase induction motor.
- Derive the expressions for rotor induced emf and torque of three phase induction motor for different operating conditions.
- Explain with sketch the operation of the motor in the specified quadrant.
- Determine the specified performance parameters of the motor.
- Explain with sketch the operation of the relevant starter for the given motor.
- Explain the specified method of speed control.
- Suggest the relevant IM for the specified different given applications.
Topics and Sub-topics
- Working principle: production of rotating magnetic field, Synchronous speed, rotor speed and slip.
- Constructional details of 3 phase induction motors: Squirrel cage induction motor and Slip ring induction motor.
- Rotor quantities: frequency, induced emf, power factor at starting and running condition.
- Characteristics of torque versus slip (speed), Torques: starting, full load and maximum with relations among them.
- Induction motor as a generalized transformer with phasor diagram.
- Four quadrant operation, Power flow diagram
- Starters: need and types; stator resistance, auto transformer, star delta, rotor resistance and soft starters.
- Speed control methods: stator voltage, pole changing, rotor resistance and VVVF.
- Motor selection for different applications as per the load torquespeed requirements.
- Maintenance of three phase induction motors
Unit 2
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Unit 3
Three phase alternators
Total Teaching Hours – 14
Distribution of Theory Marks
R Level – 02
U Level – 06
A Level – 08
Total Marks – 16
Unit Outcomes (UOs) (in cognitive domain)
- Explain with sketch working of the given type of alternator
- Explain with sketch construction of the given type of alternator.
- Compare the rotor constructions of the given types of alternators.
- Determine the voltage regulation at the specified operating conditions.
- Describe the procedure to maintain the given type f three phase alternators.
Topics and Sub-topics
- Principle of working, moving and stationary armatures.
- Constructional details: Parts and their functions, rotor constructions, Windings: Single and Double layer.
- E.M.F. equation of Alternator with numerical by considering short pitch factor and distribution factor.
- Alternator loading: Factors affecting the terminal voltage of alternator; Armature resistance and leakage reactance drops.
- Armature reaction at various power factors and synchronous impedance.
- Voltage regulation: direct loading and synchronous impedance methods.
- Maintenance of alternators
Unit 4
Synchronous motors
Total Teaching Hours – 12
Distribution of Theory Marks
R Level – 02
U Level – 04
A Level – 06
Total Marks – 12
Unit Outcomes (UOs) (in cognitive domain)
- Explain with sketch working of the given type of synchronous motor.
- Explain with sketch construction of the given type synchronous motor.
- Explain the effect of the excitation variation for the given loading conditions.
- Suggest suitable synchronous motors for given applications.
- Describe the procedure to maintain the given type of synchronous motor
Topics and Sub-topics
- Principle of working /operation, significance of load angle.
- Torques: starting torque, running torque, pull in torque, pull out torque.
- Synchronous motor on load with constant excitation (numerical), effect of excitation at constant load (numerical)
- V-Curves and Inverted V-Curves.
- Hunting and Phase swinging.
- Methods of Starting of Synchronous Motor.
- Losses in synchronous motors and efficiency (no numericals)
- Applications areas.
Unit 5
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Suggested Student Activities:
Other than the classroom and laboratory learning, following are the suggested student-related co-curricular activities which can be undertaken to accelerate the attainment of the various outcomes in this course: Students should conduct any two of the following activities in group and prepare reports of about 5 pages for each activity, also collect/record physical evidences for their (students) portfolio which will be useful for their placement interviews:
- Collect information/product brochures on three phase induction motors.
- Collect information/product brochures on single phase induction motors.
- Collect information/product brochures on stepper motors.
- Collect information/product brochures on AC servomotors.
- Collect information/product brochures on DC servomotors.
- Collect information/product brochures on synchronous motors.
- Collect information/product brochures on different types of alternators.
- Collect information/product brochures on AC servomotors.
- Collect information in brochures or other means for setting up VVVF drives.
- Determine the full load torque form the name plate specifications of induction motors in the laboratory or other places.
Suggested Special Instructional Strategies:
These are sample strategies, which the teacher can use to accelerate the attainment of the various outcomes in this course:
- Massive open online courses (MOOCs) may be used to teach various topics/sub topics.
- L in item No. 4 does not mean only the traditional lecture method, but different types of teaching methods and media that are to be employed to develop the outcomes.
- About 15-20% of the topics/sub-topics which is relatively simpler or descriptive in nature is to be given to the students for self-directed learning and assess the development of the COs through classroom presentations (see implementation guideline for details).
- With respect to item No. 10, teachers need to ensure to create opportunities and provisions for co-curricular activities.
- Guide students in undertaking micro-projects.
- Flash/Animations to explain working of Electric Locomotive and Elevatos.
Suggested Micro-Projects
For the complete Syllabus, results, class timetable, and many other features kindly download the iStudy App
It is a lightweight, easy to use, no images, and no pdfs platform to make students’s lives easier..
Suggested Learning Resources:
- A text book of Electrical technology Vol II Theraja B. L. Theraja A. K. S. Chand and Co. New Delhi ISBN 10:8121924375
- Electrical Machines Bhattacharya S. K. Tata McGraw Hill, New Delhi ISBN 9780075415396
- Electrical Machines Kothari D. P. and Nagrath I. J. McGraw Hill, New Delhi ISBN13: 978-9352606405
- Basic Electrical Engineering Miltie V.N. McGraw Hill, New Delhi, 2014 ISBN 9780074516324
- Special Purpose Electrical Machines Sen S. K. Khanna Publishers, New Delhi, ISBN- 9788174091529
- Special Electrical Machines Janardanan E. G Prentice Flail India, New Delhi ISBN: 9788120348806
- Electrical Technology Hughes E. ELBS
- Electrical Technology Cotton H ELBS
Software/Learning Websites:
- www.nptel.iitm.ac.in
- www.howstuffworks.com/
- www.vlab.com
- www.khanacademy.com
- https://freevideolectures.com/course/2335/basic-electrical-technology/35
- https://freevideolectures.com/course/2335/basic-electrical-technology/36
- https://freevideolectures.com/course/2335/basic-electrical-technology/37
- https://freevideolectures.com/course/2335/basic-electrical-technology/38
- https://ffeevideolectures.com/course/2335/basic-electrical-technology/39
- https://www.youtube.com/watch7vMiYV siCu RI
- https://www.explainthatstuff.com/how-stepper-motors-work.html
- https://www.edn.com/design/sensors/4406682/Brushless-DC-iMotorsPart-I Construction-and-Operating-Principles
- https://www.youtube.com/watch?v=bCEiOnuODac
For detail Syllabus of all other subjects of Electrical Power System, I – scheme do visit Electrical Power System 5th Sem Syllabus for I – scheme.
For all Electrical Power System results, visit MSBTE Electrical Power System all semester results direct links.