1. Phapang tshireletso ea transformer ka sehloohong e etselitsoe le etsoa ho ea ka molao-motheo oa ho potoloha hajwale, ha khase tshireletso e entsoe le ho etsoa ho ea ka tšobotsi ea hore khase e tla hlahisoa kapa e bola ha phoso ea ka hare ea transformer e etsahala.

2. Tšireletso e fapaneng ke tšireletso e ka sehloohong ea transformer, ‘me tšireletso ea khase ke tšireletso e ka sehloohong ha transformer e fosahetse ka hare.

3. Ho ea ka mefuta e fapaneng ea tšireletso: Tšireletso e fapaneng: 1) Potoloho e khutšoanyane ea mekhahlelo e mengata e etsahala ka terata e ka sehloohong ea transfoma le khoele ea transformer. 2) Potoloho e khuts’oane e tebileng ea ho fetoha ha karolo e le ‘ngoe. 3) Tsamaisong e kholo ea hona joale ea ho theola fatše, sireletsa phoso ea motheo ea coil le terata e etellang pele. B Tšireletso ea khase: 1) Potoloho e khutšoanyane ea mekhahlelo e mengata ka hare ho transformer. 2) Inter-turn short circuit, inter-turn and iron core kapa kantle le short circuit. 3) Ho hloleha ha tšepe ea mantlha (ho futhumatsa le ho chesa). 4) Ho tla ba le kapa ho tsoa ha oli tlas’a bokaholimo ba oli. 5) Mochine oa ho fetola pompo ha o kopane hantle kapa terata ha e tsoetsoe hantle.