in alternator how we can give power to rotor ? its power is
AC or DC ?
Answer Posted / guptar48
Friends,When altenator rotor rotate through Prime mover/
Engine,E.m.f genrates in Exciter rotor due to resudual
magnetism in Exciter stator. then genrate AC voltage in Exc
rotor goes through rectifier (DC Voltage) to Main Rotor and
we gets AC voltage through alternator. AVR only receive
referance voltage from main output and gives voltage to
Exciter stator according to load and also maintain output
voltage as per our set voltage limits.
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