generator reliable, Stamford Type of AC generators, Three Phase, IP23, Class H, Rated voltage 400V, 110-690V for option, ... AVR. EXCITATION SYSTEM:The standard AVR are EA05A-3,EA04: SX440 , SX460 or MAX321(pHonalAVR)The main stator provides ... exciter' s rotor IS Input to that of mains through 3-phase full wave rectifier Two ends of the rectifier are connected ...