Electrical Machines
What is/are the necessary conditions for voltage build up in self excited generator?

All of these
 Field winding should be properly connected to armature winding.
 Field winding resistance should be less than critical resistance.
 Poles should contain residual flux.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
DC Motor

  dc compound motor.
  dc series motor.
  dc shunt with armature resistance control.
  dc shunt motor with field weakening.

ANSWER DOWNLOAD EXAMIANS APP