Basa guru re simba transformer ndeyekufambisa simba remagetsi, saka iyo yakayerwa huwandu ndiyo yayo huru parameter. Naizvozvo iyo inoshandura simba muchiteshi chiri kutambawo basa rimwe chete uye kutapurirana kwemagetsi emagetsi simba rekushandura ndiyo imwe yemidziyo mikuru yezvidyarwa zvemagetsi uye zviteshi. Basa rekushandura rakasiyana-siyana, kwete chete rinogona kusimudza magetsi kutumira simba remagetsi kunzvimbo yekushandiswa, asiwo kuderedza magetsi kune ese mazinga ekushandiswa. Naizvozvo, iyo inoshandura simba mune substation inoita basa rakakosha muhurongwa hwekushanda kweiyo substation.