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Course10810513191 lectures

Electrical Machines - II

Prof. Tapas Kumar Bhattacharya · IIT Kharagpur

Start with lecture 1 At NPTEL

Lectures

WEEK 1

  1. Lecture 01 : Inductance, Self and Mutual Video
  2. Lecture 02 : Relationship of Inductances in Transformer Video
  3. Lecture 03 : Equivalent Circuit from Circuit KVL Equations Video
  4. Lecture 04 : Co-efficient of Coupling , Energy Stored in Coupled Coils Video
  5. Lecture 05 : A Single Conductor Generator and Motor Video

WEEK 2

  1. Lecture 06: Analysis of Single Conductor Generator and Motor Video
  2. Lecture 07: Analysis of Single Conductor Generator and Motor (Contd.) Video
  3. Lecture 08: Flux Density Distribution in Space and Nature emf Video
  4. Lecture 09: Flux Density Distribution in Space and Nature emf (Contd.) Video
  5. Lecture 10: From Linear to Rotating Machine Video

WEEK 3

  1. Lecture 11 : From Linear to Rotating Machine (Contd.) Video
  2. Lecture 12 : Basic Underlying Principle of Operation of Rotating Machine Video
  3. Lecture 13 : Basic Underlying Principle of Operation of Rotating Machine (Contd.) Video
  4. Lecture 14 : Flux Density Distribution along the Air Gap Video
  5. Lecture 15 :Flux Density Distribution along the Air Gap (Contd.) Video

WEEK 4

  1. Lecture 16 : Induced Voltage in a Coil in a Rotating Machine Video
  2. Lecture 17 : Induced Voltage in a Coil in a Rotating Machine (Contd.) Video
  3. Lecture 18 : Induced Voltage in a Coil in a Rotating Machine (Contd.) Video
  4. Lecture 19 : Induced Voltage due to Fundamental and Harmonic Components of Flux Density Distribution Video
  5. Lecture 20 : Distributed Coils Connected in Series Resultant Voltage Video

WEEK 5

  1. Lecture 21: Distribution Factor Video
  2. Lecture 22: Pitch Factor and Winding Factor Video
  3. Lecture 23: How to decide about Short Pitch Angle ϵ Video
  4. Lecture 24 : Double Layer 3-phase Winding - An Introduction Video
  5. Lecture 25 : Winding Table for 3-phase Distributed Winding Video

WEEK 6

  1. Lecture 26 : Winding Table for 3-phase Distributed Winding with Examples Video
  2. Lecture 27 : Winding Table for 3-phase Distributed Winding with Examples (Contd.) Video
  3. Lecture 28 : 120 degree Phase Spread Winding with Examples Video
  4. Lecture 29 : Winding Table of 120 degree Phase Spread Coils and Group Connection Video
  5. Lecture 30 : Introduction to Rotating Magnetic Field Video
  6. Lecture 31 : Rotating Magnetic Field (Contd.) , Mechanical and Electrical Speed Video
  7. Lecture 32 : Speed and Direction of Rotating Field Video

WEEK 7

  1. Lecture 33: Synchronous Speed and How to Calculate Induced Voltage in a Coil Video
  2. Lecture 34: Introduction to Induction Motor Video
  3. Lecture 35: Introduction to Induction Motor (Contd.) Video
  4. Lecture 36: General Expression of Torque in Terms of Stator and Rotor Fields Video
  5. Lecture 37: Torque Angle and Torque Expression Video
  6. Lecture 38 : How to Fix Up Positions of Net Field, Rotor Field and Stator Field Video
  7. Lecture 39: Slip: Its Importance and Range for Motor Operation Video
  8. Lecture 40: Equivalent Circuit of 3-Phase Induction Motor Video

WEEK 8

  1. Lecture 41: Equivalent Circuit of 3-Phase Induction Motor(Contd.) Video
  2. Lecture 42: Equivalent Circuit of 3-Phase Induction Motor (Contd.) Video
  3. Lecture 43: Expression for Electromagnetic Torque in terms of Equivalent Circuit Parameters Video
  4. Lecture 44: Maximum Electromagnetic Torque and Slip at Which it Occurs Video
  5. Lecture 45 : Typical Torque Slip Characteristic and Operating Point Video
  6. Lecture 46: Change in Torque-slip Characteristic as Supply Voltage and Rotor Resistance are Varied Video
  7. Lecture 47: Types of Induction Motor - Slip Ring Type Video
  8. Lecture 48: Introduction to Cage Induction Motor Video

WEEK 9

  1. Lecture 49: Cage Motor Can Operate for Different Stator Poles Video
  2. Lecture 50: Core Loss in Induction Motor and Simplified Equivalent Circuit Video
  3. Lecture 51: Torque Expression from Simplified Equivalent Circuit and Introduction to Circle Diagram Video
  4. Lecture 52: Circle Diagram (Contd.) Video
  5. Lecture 53: Exact Power Flow Diagram and Circle Diagram Video
  6. Lecture 54: Circle Diagram (Contd.) Video
  7. Lecture 55: Circle Diagram: Slip Line Video
  8. Lecture 56: Circle Diagram from Test Data Video

WEEK 10

  1. Lecture 57 : Starting of 3 Phase Induction Motor - Introduction Video
  2. Lecture 58 : DOL and Reactor Starting Video
  3. Lecture 59 : DOL and Auto Transformer Starting Video
  4. Lecture 60 : Introduction to Speed Control Video
  5. Lecture 61 : Idea of VVVF Speed Control of Induction Motor Video
  6. Lecture 62 : Speed Contro Using Two Motors Video
  7. Lecture 63 : Electrical Braking of 3 Phase Induction Motor Video
  8. Lecture 64 : Braking (Contd.) Video
  9. Lecture 65 : Introduction to Single Phase Induction Motor - Sequence Currents Video
  10. Lecture 66 : Development of Equivalent Circuit Video

WEEK 11

  1. Lecture 67 : Development of Equivalent Circuit (Contd.) Video
  2. Lecture 68 : Torque-slip Ch. of 1 ph. I-M Running on Single Winding Video
  3. Lecture 69 : Introduction to Starting of 1ph. Induction Motor Video
  4. Lecture 70 : Expression for Starting Torque and Need for Phase Splitting Video
  5. Lecture 71 : Resistor Split 1 ph. Induction Motor Video
  6. Lecture 72 : Capacitor Split 1 ph Induction Motor Video
  7. Lecture 73 : Starting of 1 ph. Induction Motor (Contd.) Video
  8. Lecture 74 : Synchronous Machine Construction Video
  9. Lecture 75 : Synchronous Generator - Introduction Video
  10. Lecture 76 : Synchronisation Video
  11. Lecture 77 : Expression for Induced Voltage and O.C. Phasor Diagram Video
  12. Lecture 78 : Loaded Synchronous Generator - Resultant Field Video

WEEK 12

  1. Lecture 79: Armature Reaction and Synchronous Reactance. Basic Phasor Diagram Video
  2. Lecture 80: General Mode of Operation - Rotro Field, Stator Field and Resultant Field Video
  3. Lecture 81: Complete Phasor Diagram and Expression for Complex Power Video
  4. Lecture 82: Synchronous Motor Operation, Phasor Diagram and Power Expression Video
  5. Lecture 83: Effect of Variation of Field Current in Generator Video
  6. Lecture 84: Effect of Variation Field Current in Synchronous Motor, Introduction to Salient Pole Machine Video
  7. Lecture 85: Analysis of Salient Pole Synchronous Machine Video
  8. Lecture 86: Phasor Diagram of Salient Pole Synchronous Machine for Generator and Motor Mode Video
  9. Lecture 87: Expression for Load Angle and Expression for Power Video
  10. Lecture 88: Phasor Diagrams of Salient Pole Synchronous Generator under Various Conditions Video
  11. Lecture 89: Phasor Diagrams of Salient Pole Synchronous Motor under Various Conditions Video
  12. Lecture 90: O.C and S.C Test on Synchronous Generator Video

Live Session

  1. Live Session 21-02-2020 Video

Syllabus and materials

At NPTEL, as the course publishes them.

Credits and licence

Institution
IIT Kharagpur
Department
Electrical Engineering
Teacher
Prof. Tapas Kumar Bhattacharya
Level
Undergraduate
Language
English
Subjects
Engineering
Source
NPTEL
Licence
CC BY-NC-SA, as NPTEL states it. Non-commercial use only. NPTEL's terms
Attribution
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