Brushless exciter system PMG RES20008

for alternator

EMG specializes in Brushless exciter systems for power stations alternators and produces machines from 20 KW (600 mm diameter) to more than 300 KW (2400 mm diameter) covering the entire market needs . The Exciters which we offer are designed to be assembled directly on the shaft of the main alternator without modification. They are provided with a rotating rectifier bridge and they are adapted to each alternator : Electric characteristics, shaft diameter, mechanical fixations. Furthermore, they can replace existing commutator exciters on hydraulic alternators in order to obtain a brushless system. EMG exciters are made as follows : - The rotor is assembled directly on a main alternator shaft, and is constructed with a varnished electrical lamination , windings are made of enameled wire or copper bars and which are fixed to the rotating rectifier bridge. - The stator is manufactured with magnetic lamination . The number of poles define the frequency of exit (between 4 and 80 poles, according to the nominal RPM of the main alternator). - Low speeds, from 100 to 1800 RPM, for hydraulic applications or diesels. - Hight speeds, from 3000 to 3600 RPM, for turbo alternators.