I-transformer esezantsi ibizwa ngokuba yi-grounding transformer ngokufutshane. Ngokutsho kwendawo yokuzalisa, i-transformer yomhlaba ingahlulwa ibe yintlobo yeoli kunye nohlobo olomileyo; Ngokwenani lezigaba, i-transformer yomhlaba ingahlulwa ibe yi-transformer yesigaba esithathu kunye ne-single-phase grounding transformer. Umsebenzi wenguqu yesiseko kukubonelela indawo yokungathathi hlangothi yokwenziwa kwenkqubo enendawo engathathi hlangothi engathathi hlangothi, elungele ukusetyenziswa kwekhoyili yokucinezela i-arc okanye imowudi yokumelana encinci, ukuze kuncitshiswe i-capacitance yangoku ukuya emhlabeni kwimeko yokumisa. Iphutha lesekethe emfutshane kuthungelwano lokuhambisa kunye nokuphucula ukuthembeka konikezelo lwamandla kwinkqubo yokuhambisa.