Ubume be-oyile ye-oyile ngokuqhelekileyo buphelele ngakumbi, ukusebenza kunokwethenjelwa ngakumbi, phantsi kweemeko eziqhelekileyo, i-oyile ye-oyile ayiyi kubonakala imbi kakhulu, Kwangaxeshanye, i-transformer yamandla ineempawu zokusetyenziswa kwamandla aphantsi, umthamo omkhulu, kunye nexabiso eliphantsi ngokwalo. , ukwenzela ukuba i-oil transformer encinci ayiyi kuchaphazela umsebenzi wayo ngenxa yexabiso eliphantsi. Ngokukodwa, isityalo esisiguquli samandla esomileyo, umgangatho wabo wemveliso uqinisekisiwe, kwaye amaxabiso abo anokucinezelwa ukuya kwelona lisezantsi, ethandwa kakhulu ngabantu.