An induction motor works with AC Only.
Hold the armature stampings in position
The stator frame in an induction motor is used to hold the armature stampings in position.
Closed grained cast iron
The frame of an induction motor is made of Closed grained cast iron.
Eddy current loss
All of the above
Consequent pole with opposite polarity
The induction motor shaft is made of Mild steel.
Easy to cast owing to its low melting point and is easily available
Rotor conductors are short circuited through end rings
Any number of poles in an
Facilitate cooling of rotor
Three phase winding
Connect extra resistance across them during starting
External star connected resistors
Rotor at slip rings
Both (a) and (b)
Reduce the magnetizing current
Its power facts will reduce
In an induction motor, if the air gap is increased Its power facts will reduce.
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