1. Transformer overload;

2. Yakashata mukati mekubatana kwe transformer, kubuda uye kupisa;

3. Nhengo dzega dzega dzetransformer dzakasununguka;

4. Pane kugadzika kana kupfupika kwedunhu mu transformer system;

5. Kutanga kwemotokari huru kunoita kuti mutoro uchinje zvikuru.