Before the transformer is put into production, a series of oil tests are required, such as testing the dielectric loss factor, acid value, flash point and moisture of the transformer oil.
Kuva ibikoresho byo gupima neza byinjira mu Bushinwa mu myaka ya za 90, byahindutse inganda zitera imbere byihuse mu nganda zikiri mu nzira y'amajyambere.