Izvi zvinonyanya kufunga nezvekusarudzika kwetransformer relay kuchengetedza chiito. Iko kukurumidza kuputsa kudzivirira pakakwirira voltage rutivi rwe transformer rinonyanya kushandiswa kuchengetedza zvikanganiso zvekunze zve transformer. Muchigadziro, kana iyo yakanyanya kupfupika yedunhu ikozvino pane yakaderera voltage divi re transformer harina kudziviswa, mapfupi emagetsi emazuva ano maitiro muchikamu chisiri kure nekubuda padivi remhepo yakaderera haashanduke zvakanyanya uye zvakangofanana, izvo zvichawedzera chiyero chekudzivirira kwekukurumidza kuputsa pamhepo yakakwira. rutivi rwe transformer kune yakaderera-voltage inobuda mutsara, nokudaro kurasikirwa nekusarudza Mushure mekurasikirwa kwekusarudza, kuchengetedzwa kunonyanya kuvimbika, asi kunounza kusagadzikana kune mvumo. Semuyenzaniso, mapaki mazhinji emaindasitiri ave akashongedzerwa nemakamuri ekugovera 10KV (10KV mabhazi mabhawa + anobuda edunhu mabhureki), uye imwe neimwe musangano ine yakaderera-voltage kugovera makamuri (mhete network kabati + transformer). Kana wedunhu akatyora akasapukunyuka kunonyanyisa pfupi redunhu ikozvino panguva yakaderera-voltage parutivi transformer, zvichaita kuti yakaderera-voltage chikuru chinja, (mhete network kabhineti mutoro chinja fiyuzi), uye mukuru-voltage redunhu breaker kuita, izvo zvichaunza kusagadzikana pakushanda