Generator Operator Interview Question:

Explain me how do you define Self Excited Generators?

Submitted by: Muhammad

A d.c. generator whose field magnet winding is supplied current from the output of the generator itself is called a self-excited generator. There are three types of self-excited generators depending upon the manner in which the field winding is connected to the armature,
(i) Series generator - , the field winding is connected in series with armature winding so that whole armature current flows through the field winding as well as the load.
(ii) Shunt generator - , the field winding is connected in parallel with the armature winding so that terminal voltage of the generator is applied across it.
(iii) Compound generator - there are two sets of field windings on each pole-one is in series and the other in parallel with the armature. A compound wound generator may be:
(a) Short Shunt in which only shunt field winding is in parallel with the armature winding
(b) Long Shunt in which shunt field winding is in parallel with both series field and armature winding
Submitted by: Muhammad