magnetic field in a dc generator is produced by electric currents.
magnetic field in a dc generator is produced by electric currents.
magnetic field in a dc generator is produced by?
electric currents
there will be a small armature voltage drop on load, which will be reflected in the voltage applied to the shunt field. the output voltage in a dc shunt-wound generator drops slightly as load current increases because of the voltage drop across the armature resistance.









































section::::compound winding.









































in a shunt-wound generator, output voltage varies inversely with load current. in a series-wound generator, output voltage varies directly with load current. a combination of the two types can overcome the disadvantages of both. this combination of windings is called a compound-wound dc generator.









































section::::see also.









































bullet::::- dc motor









































bullet::::- excitation (magnetic)
shunt generator
bullet::::- in an induction generator, the stator magnetic flux induces currents in the rotor. the prime mover then drives the rotor above the synchronous speed, causing the opposing rotor flux to cut the stater coils producing active current in the stater coils, thus sending power back to the electrical grid. an induction generator draws reactive power from the connected system and so cannot be an isolated source of power.









































bullet::::- in a synchronous generator (alternator), the current for the magnetic field is provided by a separate dc current source.









































section::::generator.:dc generator.
electric machine