GDBT Transformer test system imatha kuyesa mayeso onse osinthika, kuphatikiza kuyesa kwa No-load and load, kuyesa voteji, kuyesa kwamagetsi, kuyesa kwamagetsi pang'ono, kuyesa kwapang'ono, kuyesa kwa DC kukana, kuyesa kwa chiŵerengero, kukwera kwa kutentha ndi zina.