Question { 2375 }

if field winding of synchronous generator are shorted on each other will it start or burn or run for short time like induction motor

Answer

the synchronous generator's (rotor) which is field winding,
it will produce a field for small amount of time but after
some time, due shorted the excessive amount of current
produce the heat that will cause the generator rotor to burn
out.

Question { 3872 }

what is the difference between EMF and potential difference??

Answer

EMF (Electromotive force) the force that is present when the
battery is not connected in circuit and voltage a pressure
when the battery is connected in circuit. the voltage is a
term for potential difference.

Question { APTransco, 3924 }

Elaborate the term "rotating magnetic field"

Answer

the movement of magnetic field in field winding of induction
machine. it moves in the clock wise or anti clockwise
direction but when this rotating magnetic field is equal to
the speed of the rotor then rotor will be in the lock out
condition. when the rotating magnetic field is less than
rotor speed. this is case in the Induction machines.
Ns=120f/P