Course

Electrical Machines - I

Indian Institute of Technology Kharagpur

Synchronous machines: types, windings, emf equation, generator and motor operations, phasor diagrams; testing, power angle characteristic, v-curves, stability; starting of synchronous motor.Analysis of salient pole synchronous machines.

Single phase induction motor: Rotating and pulsating field, development of equivalent circuit based on double revolving field theory, torque-slip characteristic, performance analysis; Starting by phase spliting; selection of capacitor value for starting and running condtions.

D.C machines: Construction, armature windings; emf and torque equations; generator and motor mode of operations; armature reaction, commutation; characteristics of D.C motors; starting, speed control and braking of D.C motor.

Course topics:

  1. Fundamentals of single phase transformers.
  2. Testing and performance of single phase transformers.
  3. Fundamentals of three phase transformers.
  4. Operation and performance of three phase transformers.
  5. Special purpose transformers.
  6. Construction and operating principle of three phase induction machines.
  7. Analysis of three phase induction machines.
  8. Testing of three phase induction machines.
  9. Starting and speed control of three phase induction machines.
Course Lectures