Continuous Evaluation(Quiz – IV) Syllabus for Subject: Design of AC Machines[ subject code : 2170909]

 

Continuous Evaluation(Quiz – IV)

Syllabus for

Subject: Design of AC Machines[ subject code : 2170909]

(1)DESIGN OF THREE PHASE INDUCTION MOTOR:

Construction details, MAIN DIMENSIONS, Output equation, choice of specific loadings, separation of D and L.

 STATOR DESIGN:

Stator winding design, Calculation of no. of turns per phase, Conductor’s area, Shape of the stator slots, Area of stator slots, Stator teeth design, Depth of the stator core, Length of air gap,

ROTOR DESIGN:

A. Squirrel cage rotor – Selection of no. of rotor slots, Effect of harmonics and choice of rotor slots to minimize harmonics, vibration, noise and voltage ripples, Rules for selecting no. of rotor slots, Methods for reducing harmonic torque, Design of rotor bars and rotor slots. Design of end rings and rotor core.

B. Wound rotor - Calculation of number of rotor slots, Number of turns, Cross sectional area of rotor conductors,

 

 (2)DESIGN OF SINGLE PHASE INDUCTION MOTOR:

Construction details, Design of main dimensions, Design of stator, Design of rotor, Design of auxiliary winding.

PERFORMANCE PARAMETERS EVALUATION:

Rotor resistance, Stator resistance, Iron loss, Friction and Windage loss,

 

(3)DESIGN OF SYNCHRONOUS MACHINE:

Construction details, Output equation and design of main dimensions, Short Circuit Ratio (SCR) and its significance, Length of air gap and shape of pole face.

ARMATURE DESIGN:

Armature winding (Single layer and double layer), Number of armature slots, Slot dimensions, Length of mean turn, Calculation of armature resistance and reactance.