1. Musiyano kuchengetedzwa yeiyo main transformer inogadzirwa uye inogadzirwa zvinoenderana nemusimboti wekutenderera ikozvino, nepo gasi kuchengetedzwa inogadzirwa uye inogadzirwa zvinoenderana nehunhu hwekuti gasi richagadzirwa kana kunyungudika kana shanduko yemukati inokanganisa.

2. Kudzivirirwa kwakasiyana-siyana ndiko kudzivirirwa kukuru kweshanduro, uye kuchengetedzwa kwegesi ndiyo kudzivirirwa kukuru kana mushanduri akanganisa mukati.

3. Zvinoenderana neakasiyana ekudzivirira scopes: A Differential kudzivirira: 1) Multi-phase short circuit inoitika mune main transformer lead wire uye transformer coil. 2) Yakakomba kutendeuka-ku-kutendeuka pfupi dunhu rechikamu chimwe chete. 3) Mune yakakura ikozvino pasi pasi system, chengetedza kukanganisa kwepasi kwecoil uye waya inotungamira. B Kudzivirirwa kweGasi: 1) Multi-phase short circuit mukati me transformer. 2) Inter-turn short circuit, inter-turn uye iron musimboti kana wekunze uye pfupi dunhu. 3) Iron core kukundikana (kupisa uye kupisa). 4) Pachave kana kubuda kwemafuta pasi pemafuta. 5) Chinja chepombi hachina kubatwa zvakanaka kana waya haina kukwenenzverwa.