Features
- This unique free application is for all students across the world. It covers 91 topics of Special Electrical Machines in detail. These 91 topics are divided in 5 units.
- Each topic is around 600 words and is complete with diagrams, equations and other forms of graphical representations along with simple text explaining the concept in detail.
- This USP of this application is "ultra-portability". Students can access the content on-the-go from anywhere they like.
- Basically, each topic is like a detailed flash card and will make the lives of students simpler and easier.
- Some of topics Covered in this application are:
- 1. Poly-phase AC Machines
- 2. Classification of A.C. Motors
- 3. Construction of A.C Motor
- 4. Phase-wound Rotor
- 5. Production of Rotating Field
- 6. Three-phase Supply
- 7. Relation Between Torque and Rotor Power Factor
- 8. Starting Torque of induction motor
- 9. Torque, Rotor E.M.F. and Reactance Under Running Conditions
- 10. Condition for Maximum Torque Under Running Conditions
- 11. Relation Between Torque and Slip
- 12. Full-load Torque, Starting torque and Maximum Torque
- 13. Torque/Speed Curve
- 14. Current/Speed Curve of an Induction Motor
- 15. Plugging of an Induction Motor
- 16. Complete Torque/Speed Curve of a Three-Phase Machine
- 17. Measurement of Slip
- 18. Power Stages in an Induction Motor
- 19. Torque, Mechanical Power and Rotor Output
- 20. Induction Motor Torque Equation
- 21. Analogy with a Mechanical Clutch and D.C. Motor
- 22. Sector Induction Motor
- 23. Magnetic Levitation
- 24. Induction Motor as a Generalized Transformer
- 25. Equivalent Circuit of the Rotor and Induction Motor
- 26. Power Balance Equations
- 27. Circle Diagram for a Series Circuit
- 28. Circle Diagram for the Approximate Equivalent Circuit
- 29. Determination of G0 and B0
- 30. Blocked Rotor Test
- 31. Construction of the Circle Diagram
- 32. Starting of Induction Motors
- 33. Starting of Slip-ring Motors
- 34. Starter Steps
- 35. Crawling and Cogging or Magnetic Locking
- 36. Double Squirrel Cage Motor
- 37. Speed Control of Induction Motors
- 38. Three-phase A.C. Commutator Motors
- 39. Three-phase A.C. Commutator Motors
- 40. Standard Types of Squirrel-cage Motors
- 41. Types of Single-Phase Motors
- 42. Single-phase Induction Motor
- 43. Double-field Revolving Theory
- 44. Making Single-phase Induction Motor Self-starting
- 45. Equivalent Circuit of a Single-phase Induction Motor Without Core Loss
- 46. Types of Capacitor - start Motors
- 47. Capacitor Start-and-Run Motor
- 48. Shaded-pole Single-phase Motor
- 49. Repulsion Type Motors
- 50. Repulsion Principle
- 51. Compensated Repulsion Motor
- 52. A.C. Series Motors
- 53. Universal Motor
- 54. Speed Control of Universal Motors
- 55. Unexcited Single-phase Synchronous Motors
- 56. Basic Principle and Stationary Armature of Alternator
- 57. Details of Construction
- 58. Damper Windings, Speed and Frequency
- 59. Armature Windings, Concentric or Chain Windings and Two-Layer Winding
- 60. Wye and Delta Connections, Short-pitch Winding : Pitch factor/chording factor
- 61. Distribution or Breadth Factor or Winding Factor or Spread Factor
- 62. Equation of Induced E.M.F.
- 63. Factors Affecting Alternator Size
- 64. Alternator on Load
- 65. Synchronous Reactance and Vector Diagrams of a Loaded Alternator
- 66. Voltage Regulation and Determination of Voltage Regulation
- 67. Synchronous Impedance Method
- 68. Rothert's M.M.F. or Ampere-turn Method
- 69. Zero Power Factor Method or Potier Method
- 70. Operation of a Salient Pole Synchronous Machine
- 71. Parallel Operation of Alternators and Synchronizing of Alternators
- 72. Synchronizing Current
- 73. Alternative Expression for Synchronizing Power
- 74. Parallel Operation of Two Alternators
- 75. Effect of Unequal Voltages
- 76. Time-period of Oscillation
- 77. Maximum Power Output
- 78. Stepper Motors
- 79. Types of Stepper Motors
- 80. Variable Reluctance Stepper Motors
- 81. Multi-stack VR Stepper Motor
- 82. Permanent-Magnet Stepping Motor
- 83. Hybrid Stepper Motor
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Details were last updated on Nov 30, 2024 14:42 +08.