Transformer inonyudzwa mumafuta ine zvikamu zvitatu inoshandisa chimiro chitsva chekudzikisa uye inoita kuti kuramba kwedunhu pfupi kuve kwakasimba. Iron core yakagadzirwa nesilicon-steel plate yemhando yepamusoro inotonhorera. Boka rinokwiza magetsi rakagadzirwa nemitsetse yemhangura isina oxygen uye rinoshandisa tambo dzemhando yepamusoro dzedhiramu. Zvisungo zvese zvakagadziriswa nekurapwa kwakakosha kudzivirira kuti zvisasununguke. Sechigadzirwa chetekinoroji yepamusoro chinosimudzirwa nenyika, chigadzirwa ichi chine mabhenefiti akawanda akadai sekushanda zvakanyanya, kurasikirwa kushoma. Mabhenefiti acho munharaunda anoshamisa nekuti anochengetedza kushandiswa kwemagetsi kwakawanda uye mari yekushandisa.