EE8401 - ELECTRICAL MACHINES – II (Syllabus) 2017-regulation Anna University

EE8401 - ELECTRICAL MACHINES – II (Syllabus) 2017-regulation Anna University

Anna University Regulation 2017 EE8401 syllabus is provided below. Electrical Machines –II all units Syllabus, all units notes , all units 2 marks are provided below for students to utilize it for scoring maximum marks with our study materials.

EE8401

ELECTRICAL MACHINES – II

 LPTC

3003

OBJECTIVES: To impart knowledge on the following Topics
• Construction and performance of salient and non – salient type synchronous generators.
• Principle of operation and performance of synchronous motor.
• Construction, principle of operation and performance of induction machines.
• Starting and speed control of three-phase induction motors.
• Construction, principle of operation and performance of single phase induction motors and special machines.

UNIT I

SYNCHRONOUS GENERATOR

6+6

Constructional details – Types of rotors –winding factors- emf equation – Synchronous reactance – Armature reaction – Phasor diagrams of non salient pole synchronous generator connected to infinite bus--Synchronizing and parallel operation – Synchronizing torque -Change of excitation and mechanical input- Voltage regulation – EMF, MMF, ZPF and A.S.A methods – steady state power- angle characteristics– Two reaction theory –slip test -short circuit transients - Capability Curves

UNIT II

SYNCHRONOUS MOTOR

6+6

Principle of operation – Torque equation – Operation on infinite bus bars - V and Inverted V curves – Power input and power developed equations – Starting methods – Current loci for constant power input, constant excitation and constant power developed-Hunting – natural frequency of oscillations – damper windings- synchronous condenser.


UNIT III

THREE PHASE INDUCTION MOTOR

6+6

Constructional details – Types of rotors –- Principle of operation – Slip –cogging and crawling- Equivalent circuit – Torque-Slip characteristics - Condition for maximum torque – Losses and efficiency – Load test - No load and blocked rotor tests - Circle diagram – Separation of losses – Double cage induction motors –Induction generators – Synchronous induction motor.

UNIT IV

STARTING AND SPEED CONTROL OF THREE PHASE INDUCTION MOTOR

6+6

Need for starting – Types of starters – DOL, Rotor resistance, Autotransformer and Star- delta starters – Speed control – Voltage control, Frequency control and pole changing – Cascaded connection-V/f control – Slip power recovery scheme-Braking of three phase induction motor: Plugging, dynamic braking and regenerative braking.

UNIT V

SINGLE PHASE INDUCTION MOTORS AND SPECIAL MACHINES

6+6

Constructional details of single phase induction motor – Double field revolving theory and operation – Equivalent circuit – No load and blocked rotor test – Performance analysis – Starting methods of single-phase induction motors – Capacitor-start capacitor run Induction motor- Shaded pole induction motor - Linear induction motor – Repulsion motor - Hysteresis motor - AC series motor- Servo motors- Stepper motors - introduction to magnetic levitation systems.

TOTAL: 60 PERIODS

OUTCOMES:
• Ability to understand the construction and working principle of Synchronous Generator
• Ability to understand MMF curves and armature windings.
• Ability to acquire knowledge on Synchronous motor.
• Ability to understand the construction and working principle of Three phase Induction Motor
• Ability to understand the construction and working principle of Special Machines
• Ability to predetermine the performance characteristics of Synchronous Machines.

TEXT BOOKS:
1. A.E. Fitzgerald, Charles Kingsley, Stephen. D. Umans, ‘Electric Machinery’, Mc Graw Hill publishing Company Ltd, 2003.
2. Vincent Del Toro, ‘Basic Electric Machines’ Pearson India Education, 2016.
3. Stephen J. Chapman, ‘Electric Machinery Fundamentals’4th edition, McGraw Hill Education Pvt. Ltd, 2010.

REFERENCES:
1. D.P. Kothari and I.J. Nagrath, ‘Electric Machines’, McGraw Hill Publishing Company Ltd, 2002.
2. P.S. Bhimbhra, ‘Electrical Machinery’, Khanna Publishers, 2003.
3. M.N. Bandyopadhyay, Electrical Machines Theory and Practice, PHI Learning PVT LTD., New Delhi, 2009.
4. B.R.Gupta, ’Fundamental of Electric Machines’ New age International Publishers,3rd Edition ,Reprint 2015.
5. Murugesh Kumar, ‘Electric Machines’, Vikas Publishing House Pvt. Ltd, 2002.
6. Alexander S. Langsdorf, ‘Theory of Alternating-Current Machinery’, McGraw Hill Publications, 2001.

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