# Design of Electric Motor

- Institution: IISc Bangalore
- Department: Electrical Engineering
- Teacher: Prof. Prathap Reddy
- Level: Undergraduate
- Language: English
- Subjects: Engineering
- Source: [NPTEL](https://nptel.ac.in/courses/108108191)
- Licence: [CC BY-NC-SA](https://nptel.ac.in/faq) (Non-commercial use only.)
- Syllabus: [at the source](https://nptel.ac.in/courses/108108191)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Electrical machines are the driving force for the modern world in one or another way. The main objective of this course is to understand the design of electrical machines with respect to different applications. This course starts with the principle of the electromagnetics and design of electromagnets. Once the students are familiar with the electromagnetic principle, the realization of the electrical machines and winding designs will be discussed. Afterwards, the generic design of rotating machines with respect to sizing equations, Winding volume product, electric loading, magnetic loading and geometrical construction and density will be discussed. Further, the design of induction machines switched reluctance machines and thermal design procedure for electrical machines will be discussed in detail.

Intended audience: Electrical Engineering students

Prerequisites: Basics of Electrical Machines and Electromagnetics

## Lectures

1. [History Prospect of Electrical Machines](https://invisiblenetwork.ai/learn/nptel/108108191/2f6720a7b78d) (YouTube)
2. [Electric Fields](https://invisiblenetwork.ai/learn/nptel/108108191/37563c845826) (YouTube)
3. [Magnetic Fields-1](https://invisiblenetwork.ai/learn/nptel/108108191/4bbd89c44a1b) (YouTube)
4. [Magnetic Fields-2](https://invisiblenetwork.ai/learn/nptel/108108191/b2c5e876a5b1) (YouTube)
5. [Electric and Magnetic Circuits Interface](https://invisiblenetwork.ai/learn/nptel/108108191/96ae5bfcfe69) (YouTube)
6. [Magnetic Materials and Concepts of BH Curves](https://invisiblenetwork.ai/learn/nptel/108108191/d73b80df5361) (YouTube)
7. [Analysis of Magnetic Circuits With and Without Air Gaps](https://invisiblenetwork.ai/learn/nptel/108108191/a9f3f377a504) (YouTube)
8. [Example Problems of Magnetic Circuits](https://invisiblenetwork.ai/learn/nptel/108108191/609638f98491) (YouTube)
9. [Magnetic Circuits with Multiple Windings and Permanent Magnets](https://invisiblenetwork.ai/learn/nptel/108108191/69e9d3aeaa5b) (YouTube)
10. [Force Equations in Electromechanical Systems-1](https://invisiblenetwork.ai/learn/nptel/108108191/42ae4a68def7) (YouTube)
11. [Force Equations in Electromechanical Systems-2](https://invisiblenetwork.ai/learn/nptel/108108191/71bf4a5730c5) (YouTube)
12. [Design of Electromagnetic Systems](https://invisiblenetwork.ai/learn/nptel/108108191/63ad1a8ed88d) (YouTube)
13. [Realization of Electrical Machines-1](https://invisiblenetwork.ai/learn/nptel/108108191/9800c8612380) (YouTube)
14. [Realization of Electrical Machines-2](https://invisiblenetwork.ai/learn/nptel/108108191/d6e5d3139d72) (YouTube)
15. [Magnetic Fields in DC Machines-1](https://invisiblenetwork.ai/learn/nptel/108108191/fb791d6102f7) (YouTube)
16. [Magnetic Fields in AC Machines-1](https://invisiblenetwork.ai/learn/nptel/108108191/df67f7e6a4a0) (YouTube)
17. [Magnetic Fields in AC Machines-2](https://invisiblenetwork.ai/learn/nptel/108108191/7ae3761dbba5) (YouTube)
18. [Magnetic Fields in AC Machines-3](https://invisiblenetwork.ai/learn/nptel/108108191/2060909f247c) (YouTube)
19. [MMF Distribution of AC Machines](https://invisiblenetwork.ai/learn/nptel/108108191/e5709a1bbd4b) (YouTube)
20. [Basics of Electrical Machine Windings](https://invisiblenetwork.ai/learn/nptel/108108191/fe94b8310576) (YouTube)
21. [Stator winding design-single layer winding](https://invisiblenetwork.ai/learn/nptel/108108191/5ef9271af364) (YouTube)
22. [Stator winding design-double layer winding](https://invisiblenetwork.ai/learn/nptel/108108191/f44086398402) (YouTube)
23. [Stator Winding Design-Fractional Slot Double Layer Winding](https://invisiblenetwork.ai/learn/nptel/108108191/7f09ee021484) (YouTube)
24. [Variable Pole Machine Stator Winding Design (Pole-Phase Modulation)- 1](https://invisiblenetwork.ai/learn/nptel/108108191/5a113c3318b3) (YouTube)
25. [Variable Pole Machine Stator Winding Design (Pole-Phase Modulation)- 2](https://invisiblenetwork.ai/learn/nptel/108108191/0d6926cafb2c) (YouTube)
26. [Importance of Motor Design and Standards of Electric Motors](https://invisiblenetwork.ai/learn/nptel/108108191/e5a3866b4f4f) (YouTube)
27. [Electric Machine Sizing Equations-Output Power and Volume (D2L) Product Equation](https://invisiblenetwork.ai/learn/nptel/108108191/babb8cfde888) (YouTube)
28. [Lab Session on Re-winding of Induction Motor (Example: Double Layer Winding)](https://invisiblenetwork.ai/learn/nptel/108108191/74c4155dade5) (YouTube)
29. [The Figure of Merits for Electric Motors and Aspect Ratio to Decouple the D2L Product](https://invisiblenetwork.ai/learn/nptel/108108191/0418d0df2918) (YouTube)
30. [Electric Machine Sizing Equations-Output Power Equation in terms of D3L Product - 1](https://invisiblenetwork.ai/learn/nptel/108108191/95698c99595b) (YouTube)
31. [Electric Machine Sizing Equations-Output Power Equation in terms of D3L Product - 2](https://invisiblenetwork.ai/learn/nptel/108108191/6cad67897254) (YouTube)
32. [Analysis of Copper Function and Output Function w.r.t the Electric Machine D3L Product Equation](https://invisiblenetwork.ai/learn/nptel/108108191/3906869a7e33) (YouTube)
33. [Example Problems on Output Power Equation in terms of D3L Product](https://invisiblenetwork.ai/learn/nptel/108108191/3cee954c1f5b) (YouTube)
34. [Electric Machine Sizing Equations-Output Power Equation in terms of D2.5L Product](https://invisiblenetwork.ai/learn/nptel/108108191/36309f2303f8) (YouTube)
35. [Design Procedure of an Electric Machine](https://invisiblenetwork.ai/learn/nptel/108108191/fe15200b7364) (YouTube)
36. [Name Plate Details and Datasheets of Induction Motor](https://invisiblenetwork.ai/learn/nptel/108108191/53b5ce6f3baf) (YouTube)
37. [Design of Induction Machine- Stator Design -1 (Stator Core design)](https://invisiblenetwork.ai/learn/nptel/108108191/4f1af91a19e6) (YouTube)
38. [Design of Induction Machine- Stator Design -2 (Stator Winding Design)](https://invisiblenetwork.ai/learn/nptel/108108191/aa2873d5db38) (YouTube)
39. [Design of Induction Machine- Stator Design -3 (Stator Slot Geometry)](https://invisiblenetwork.ai/learn/nptel/108108191/5af9d70bbefc) (YouTube)
40. [Design of Induction Machine- Rotor Design -1 (Rotor Slots Selection)](https://invisiblenetwork.ai/learn/nptel/108108191/6d98125f5b25) (YouTube)
41. [Design of Induction Machine- Rotor Design -2 (Rotor MMF and Bar Currents)](https://invisiblenetwork.ai/learn/nptel/108108191/6f4d091574ef) (YouTube)
42. [Design of Induction Machine- Rotor Design -3 (Rotor Slot Geometry)](https://invisiblenetwork.ai/learn/nptel/108108191/9d8a2f6a485b) (YouTube)
43. [Design of Induction Machine- Rotor Design -4 (Skewing of Rotor)](https://invisiblenetwork.ai/learn/nptel/108108191/e024cf4ebd55) (YouTube)
44. [Design of Induction Machine- Rotor Design -4 (Resistance of Rotor Winding)](https://invisiblenetwork.ai/learn/nptel/108108191/d64c2c1787b4) (YouTube)
45. [Carter's Coefficient of Electrical Machines](https://invisiblenetwork.ai/learn/nptel/108108191/57c951345778) (YouTube)
46. [Effective Length Equations of the Machine Core with Different Stator and Rotor Lengths](https://invisiblenetwork.ai/learn/nptel/108108191/ca85e45043cc) (YouTube)
47. [Stator MMF and Magnetizing Current Equations of Induction Machine](https://invisiblenetwork.ai/learn/nptel/108108191/85ef308eda26) (YouTube)
48. [Magnetizing Inductance of Induction Machine](https://invisiblenetwork.ai/learn/nptel/108108191/8c0cfcca4a46) (YouTube)
49. [Stator and Rotor Leakage Inductances of Induction Machine](https://invisiblenetwork.ai/learn/nptel/108108191/4dcb492686c7) (YouTube)
50. [Equivalent Circuit Parameters of Induction Machine](https://invisiblenetwork.ai/learn/nptel/108108191/5acc26948308) (YouTube)
51. [Loss Calculation of Induction Machine -1 (Copper Losses, Hysteresis and Eddy Current Loss Calculation)](https://invisiblenetwork.ai/learn/nptel/108108191/5c6cbe9358f1) (YouTube)
52. [Loss Calculation of Induction Machine -2 and Performance Parameters of Induction Motor](https://invisiblenetwork.ai/learn/nptel/108108191/501b5c46b079) (YouTube)
53. [Switched Reluctance Machine Sizing Equations-Output Power and Volume (D2L) Product Equation](https://invisiblenetwork.ai/learn/nptel/108108191/722757fd4c6f) (YouTube)
54. [The Figure of Merits for SRM and Example Problem on Output Power Equation in terms of D2L Product](https://invisiblenetwork.ai/learn/nptel/108108191/3356de4ba9cc) (YouTube)
55. [Design of Switched Reluctance Machine: Stator Design -1](https://invisiblenetwork.ai/learn/nptel/108108191/a0ee18b31188) (YouTube)
56. [Design of Switched Reluctance Machine: Stator Design -2 and Rotor Design](https://invisiblenetwork.ai/learn/nptel/108108191/b47f83338189) (YouTube)
57. [Procedure for Calculation of SRM Inductance: Aligned Inductance -1](https://invisiblenetwork.ai/learn/nptel/108108191/13fd953578db) (YouTube)
58. [Calculation of SRM Inductance: Aligned Inductance -2](https://invisiblenetwork.ai/learn/nptel/108108191/026767bd9518) (YouTube)
59. [Efficiency and Loss Calculation of SRM](https://invisiblenetwork.ai/learn/nptel/108108191/014ded82196e) (YouTube)
60. [Importance of Thermal Design and Thermal Limits for Electrical Machines](https://invisiblenetwork.ai/learn/nptel/108108191/242c541a3169) (YouTube)
61. [Electric and Thermal Circuits Interface](https://invisiblenetwork.ai/learn/nptel/108108191/23922d61d0d9) (YouTube)
62. [Heat Transfer Methods and Basic Equations for Thermal Resistance](https://invisiblenetwork.ai/learn/nptel/108108191/ca41caa51c23) (YouTube)
63. [Heat Flow in Electrical Machines](https://invisiblenetwork.ai/learn/nptel/108108191/319b56402f3a) (YouTube)
64. [Cooling Methods and Standards for Electrical Machines](https://invisiblenetwork.ai/learn/nptel/108108191/a1a79a67bdbf) (YouTube)
65. [Basics of Thermal Equivalent Circuits](https://invisiblenetwork.ai/learn/nptel/108108191/a9d22e129d24) (YouTube)
66. [Thermal Equivalent Circuit- 1](https://invisiblenetwork.ai/learn/nptel/108108191/43792bb93db6) (YouTube)
67. [Thermal Equivalent Circuit- 2](https://invisiblenetwork.ai/learn/nptel/108108191/919c8a018153) (YouTube)