Super energy-saving, three-phase amorphous distribution transformer core, Low core loss, low noise, Range: 30KVA ~ 2500KVA. ... It is mainly used in a variety of power distribution transformers with usual frequency from 50Hz to 10 KHz; Working ... to work under frequency even 50 KHz. Catech’s amorphous distribution transformer core adopts American G.E. manufacturing techniques.Amorphous Material ...