EE3405 Electrical Machines 2 Study Materials
Anna University – EE3405 Electrical Machines 2 Regulation 2021 Syllabus , Notes , Important Questions, Question Paper with Answers Previous Year Question Paper.
UNIT I SYNCHRONOUS GENERATOR EE3405 Electrical Machines 2 Syllabus
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 method – steady state powerangle characteristics– Two reaction theory –slip test -short circuit transients – Capability Curves.
UNIT II SYNCHRONOUS MOTOR EE3405 Electrical Machines 2 Notes
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 9 EE3405 Electrical Machines 2 Important Questions
Constructional details – Types of rotors –- Principle of operation – Slip –cogging and crawlingEquivalent 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 9 EE3405 Electrical Machines 2 Question Bank
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 EE3405 Electrical Machines 2 Question Paper
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 motorsStepper motors – introduction to magnetic levitation systems.
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| Notes | Click Here |
| Important Questions | Click Here |
| Previous Year Question Paper | Click Here |
| Question Bank | Click Here |
TEXT BOOKS: EE3405 Electrical Machines 2 Notes
1. A.E. Fitzgerald, Charles Kingsley, Stephen. D. Umans, ‘Electric Machinery’, Mc Graw
Hill publishing Company Ltd, 6th Education 2017.
2. Stephen J. Chapman, ‘Electric Machinery Fundamentals’4th edition, McGraw Hill
Education Pvt. Ltd, 4th Edition 2017.
3. D.P. Kothari and I.J. Nagrath, ‘Electric Machines’, McGraw Hill Publishing
Company Ltd, 5th Edition 2017
4. P.S. Bhimbhra, ‘Electrical Machinery’, Khanna Publishers, edition 2, 2021.
REFERENCES EE3405 Electrical Machines 2 Important Questions
1. Vincent Del Toro, ‘Basic Electric Machines’ Pearson India Education, 2016.
2. M.N. Bandyo padhyay, Electrical Machines Theory and Practice, PHI Learning PVT
LTD., New Delhi, 2011.
3. B.R.Gupta, ’Fundamental of Electric Machines’ New age International Publishers,3rd
Edition, Reprint 2015.
4. Murugesh Kumar, ‘Electric Machines’, Vikas Publishing House Pvt. Ltd, First edition 2010.
5. Alexander S. Langsdorf, ‘Theory of Alternating-Current Machinery’, McGraw Hill
Publications, 2001.
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