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Electrical Machines – II

Course Topics

  • THREE PHASE INDUCTION MOTOR
  • CONSTRUCTION
  • PRINCIPLE OF OPERATION
  • EQUIVALENT CIRCUIT AND PERFORMANCE
  • NO LOAD AND BLOCKED ROTOR TEST
  • CIRCLE DIAGRAM
  • LOSSES AND EFFICIENCY
  • OPERATING CHARACTERISTICS AND INFLUENCE OF MACHINE PARAMETERS ON THE PERFORMANCE OF THE MOTOR
  • STARTING, SPEED CONTROL AND BRAKING OF POLY -PHASE INDUCTION MOTORS
  • STARTING OF SQUIRREL CAGE MOTORS
  • STARTING OF WOUND ROTORS
  • SPEED CONTROL OF THREE PHASE INDUCTION MOTOR
  • ELECTRICAL BRAKING OF POLY PHASE INDUCTION MOTORS
  • THE SINGLE PHASE INDUCTION MOTOR
  • THEORIES OF OPERATION
  • DOUBLE FIELD REVOLVING THEORY
  • VOLTAGE EQUATION AND EQUIVALENT CIRCUIT
  • DETERMINATION OF PARAMETERS BY TESTS
  • SPLIT PHASE STARTING
  • SHADED POLE TYPE
  • REPULSION MOTOR STARTING
  • CAPACITOR MOTOR
  • AC TACHOMETER.
  • TWO PHASE CONTROL MOTOR, CROSS FIELD THEORY
  • SPECIAL ELECTRICAL MACHINE
  • INDUCTION VOLTAGE REGULATOR
  • SYNCHRONOUS INDUCTION MOTOR
  • POWER SYNCHROS ,POSITION SYNCHROS
  • LINEAR MOTOR
  • SYNCHRONOUS MACHINES
  • ALTERNATORS OR THREE PHASE SYNCHRONOUS GENERATORS
  • INTRODUCTIONS, CONSTRUCTIONAL FEATURES OF CYLINDRICAL AND SALIENT POLE ROTOR
  • ARMATURE WIINDING
  • CHORDING OF WINDINGS
  • PITCH FACTOR
  • DISTRIBUTION OR BREADTH FACTOR
  • EMF EQUATIONS
  • STEADY STATE OPERATION OF ALTERNATORS:

THREE PHASE INDUCTION MOTOR

3 phase induction motor is constructed from two main parts, namely the rotor and stator.  A stator winding is placed in the stator of induction motor and the three phase supply is given to it. Rotor: The rotor is a rotating part of induction motor. A 3 phase induction motor  is type of AC motor which is widely used for its application.