*Unit-1:*
1. Working principle of alternator.
2. Constructional details of salient
pole alternator.
3. Constructional details of
non salient pole alternator (or)
cylindrical alternator (or)
turbo alternator.
4. Methods of obtaining sine wave in
an alternator.
5. Methods of cooling (or) ventilation
of alternators.
*Unit-2:*
1. Armature reaction in alternator for
various pf loads.
2. Emf method (or) synchronous
impedance method of
predetermining the voltage
regulation of an alternator.
3. Synchronising of two 3 phase
alternators by dark lamp method.
4. Synchronising of two 3 phase
alternators by bright lamp method.
5. Synchronising of two 3 phase
alternators by dark-bright lamp
method.
6. Synchronising of two 3 phase
alternators by synchroscope
method.
*Unit-3:*
1. Constructional details of squirrel
cage induction motor.
2. Slip-torque characteristics of 3
phase induction motor.
3. Working of DOL (Direct On Line)
starter. Write its merits and
demerits.
4. Working of star-delta starter. Write
its merits and demerits.
5. Working of rotor resistance starter.
Write its merits and demerits. (or)
Working of a starter suitable for
slip ring induction motor.
*Unit-4:*
1. Working principle of synchronous
motor. (or)
Synchronous motor is not self
starting, why? Explain any one
starting method.
2. Various methods of starting of
synchronous motor.
3. 'V' curve and inverted 'V' curve of
synchronous motor.
4. Construction and working of split
phase induction motor.
5. Construction and working of
capacitor start and capacitor
run induction motor.
6. Construction and working of
shaded pole induction motor.
*Unit-5:*
1. Details about various types of
enclosures used for motors.
2. List the specifications of motor.
3. Operation of single phase
prevention using current
operated relays.
4. Commissioning and annual
maintenance of induction
motors.
5. Selection of starters for induction
motor.
6. Common troubles in induction
motors and their remedies.
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