Umgomo we-early-phase isolation transformer ngokuyisisekelo wamukela umgomo wokungeniswa kwe-electromagnetic. Kuphephile ukusebenzisa isiguquli sokuhlukanisa esinezigaba ezintathu, esivame ukusetshenziswa njengendawo yokugcina amandla kagesi. I-isolation transformer ivamise ukuba yi-1:1 transformer, kodwa inezici ezihlukile. Ama-transformer okuhlukanisa izigaba ezintathu asetshenziselwa ukuguqula i-voltage, ukukhanyisa, ukunikezwa kwamandla kagesi kanye nokulungiswa kwamandla kagesi, asetshenziswa kabanzi kumabhizinisi ezimboni nezimayini, izitshalo zamandla, izikhumulo zezindiza, izakhiwo eziphakeme kakhulu, imigwaqo engaphansi komhlaba nezinye izindawo ezinezidingo zokuphepha eziphezulu zomlilo.