I-transformer sisixhobo esimileyo esisebenza ngokuqhubekayo, sisebenza ngokuthembekileyo, amathuba amancinci okusilela. Kodwa ngenxa yokuba uninzi lwabaguquli lufakwe ngaphandle, kwaye luchaphazeleka ngumthwalo ngexesha lokusebenza kunye nempembelelo yesiphambeko sesiphaluka esifutshane senkqubo yamandla, iimpazamo ezahlukahlukeneyo kunye neemeko ezingaqhelekanga zingenakuphepheka kwinkqubo yokusebenza.