Transformer bushing nuburyo bwimikorere bworohereza kunyura mumashanyarazi afite ingufu, zitwara amashanyarazi binyuze mumatara yubusa ya transformateur. Ibihuru bikoreshwa kuri voltage ntoya ihinduranya (s) ya transformateur akenshi ni ubwoko bukomeye hamwe na feri ya farashi cyangwa epoxy insulator.
Ishyamba ryibanze rya feri ni ishusho ya farashi idafite aho ihuriye nu mwobo uri mu rukuta cyangwa mu cyuma, bigatuma umuyobora anyura hagati yacyo, kandi agahuza ku mpande zombi n'ibindi bikoresho. Bushings yubwoko nkubu ikozwe muburyo butose-bushyizwemo farashi, hanyuma igasigara.

Dufite umurongo wuzuye wuzuye harimo na laboratoire y'ibizamini. kandi irashobora gutanga ibicuruzwa ukurikije ibyo usabwa.