During the 1990s, scrap yards could choose their shredder drives. The rule of thumb was DC for large and mid-size systems (5000 hp and below) and AC wound rotor for super shredders (6000 hp and above) ...
Brushless wound rotor synchronous machines (BL-WRSMs) represent an evolution in electrical machine design, combining the merits of wound rotor constructions with brushless operation to enhance ...