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MID-SEMESTER TEST ,
SYLLABUS for A C Machine Design(3170909)(7Th Semester- Electrical) |
(1)Introduction
Major considerations
in electrical machine design, Electrical engineering materials, Space
factor, Choice of
specific electrical and magnetic loadings, Thermal considerations, Heat
flow, Temperature
rise, Rating of machines.
(2)
Design of transformers
Sizing of a transformer, Main dimensions, kVA output for single-
and three-phase
transformers,
Window space factor, Overall dimensions, Operating characteristics,
(3)
Design of induction motors
Sizing
of an induction motor, Main dimensions, Length of air gap, Rules for selecting
rotor
slots of squirrel cage machines, Design of rotor bars
& slots, Design of end rings, Design of wound rotor, Magnetic leakage
calculations, Leakage reactance of poly phase machines, Magnetizing current,
Short circuit current,
(4)
Design of synchronous machines
Sizing of a synchronous machine, Main dimensions, Design of
salient pole machines, Short
circuit ratio and
its significance, Shape of pole face, Armature design, Armature parameters, Estimation of air gap
length, Design of rotor, Design of damper winding,
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