AKTU Electrical Machines-I (BEE402) Syllabus PDF – B.Tech 2nd Year
Electrical Machines-I BEE402
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- Semester 4
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Syllabus — Electrical Machines-I
Download PDFBEE402 · 4 credits · L-T-P 3-1-0
Pre-requisites of course: Basic Electrical Engineering, Engineering Mathematics
Course Outcomes
Upon the completion of the course, the student will be able to:
| CO 1 | Analyze the various principles & concepts involved in Electromechanical Energy conversion. | K 4 |
| CO2 | Demonstrate the constructional details of DC machines as well as transformers, and principle of operation of brushless DC motor, Stepper and DC Servo motors. | K 2 |
| CO3 | Evaluate the performance and characteristics of DC Machine as motor and as well as generator. | K 4 |
| CO4 | Evaluate the performance of transformers, individually and in parallel operation. | K 4 |
| CO5 | Demonstrate and perform various connections of three phase transformers. | K 3 |
KL- Bloom’s Knowledge Level (K , K , K , K , K , K ) K – Remember K – Understand K – Apply K – Analyze K – Evaluate K – Create
Course Content
Pre- Requisites: Magnetic Materials, BH characteristics Principles of Electro-mechanical Energy Conversion: Introduction, Review of magnetic system, Energy in Magnetic system, Force and torque in magnetic field system, Energy balance equation, Energy conversion via electrical field, Energy in a singly excited system, Determination of the Force and Torque from energy and co-energy, Generation of EMF in Machines, Torque in machine with cylindrical air gap.
UNIT II
Pre- Requisites: Principle & Construction, Classification and circuit model, EMF equation of generator and torque equation of motor DC Machines: Armature winding (Concentrated and Distributed), Winding Factor, Armature reaction, Commutation, Interpoles and compensating windings, Performance characteristics of DC generators, Applications.
UNIT III
DC Machines (Contd.): Performance characteristics of DC motors, Starting of DC motors; 3 point and 4 point starters, Speed control of DC motors; Field control, Armature control and Voltage control (Ward Leonard method); Efficiency and Testing of DC machines (Hopkinson's and Swinburne's Test), Applications, stepper motor and DC Servo motor and their applications.
UNIT IV
Pre- Requisites: Construction & Principle, Ideal and practical transformer, equivalent circuit & phasor diagram, losses in transformers.
Single Phase Transformer: Efficiency and voltage regulation, all day efficiency, Excitation phenomenon and harmonics in transformers.
Testing of Transformers- O.C. and S.C. tests, Polarity test, Sumpner's test.
Auto Transformer- Single phase and three phase autotransformers, Volt-amp relation, Copper saving in autotransformer Efficiency, Merits & demerits and applications.
UNIT V
Pre- Requisite: Three-phase connections – Star/Delta.
Three Phase Transformers: Construction, Three phase transformer, phasor groups and their connections, open delta connection, three phase to 2 phase and their applications, Three winding transformers. Parallel operation of single phase and three phase transformers and load sharing.
Text Books
- IJ Nagrath & D.P. Kothari, "Electrical Machines", Tata McGraw Hill
- Rajendra Prasad , "Electrical Machines", PHI
- PS Bimbhra, "Electrical Machinery", Khanna Publisher
- AE Fitggerald, C. Kingsley Jr and Umans, "Electric Machinery", McGraw Hill, International Student Edition.
Reference Books
- H. Cotton, "Electrical Technology", CBS Publication.
- MG Say, "The Performance and Design of AC machines", Pit man& Sons.
- PS Bimbhra, " Generalized Theory.
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