Transformer bushing ndi njira yotetezera kutentha yomwe imathandiza kuti kondakitala wonyamula mphamvu, wonyamula magetsi, azitha kudutsa mu thanki yokhazikika ya transformer. Ma bushing omwe amagwiritsidwa ntchito pozungulira mphamvu zochepa za transformer nthawi zambiri amakhala olimba okhala ndi porcelain kapena epoxy insulator.
Chitsulo choyambira cha porcelain ndi mawonekedwe a porcelain opanda kanthu omwe amalowa m'bowo la khoma kapena chikwama chachitsulo, zomwe zimathandiza kuti kondakitala adutse pakati pake, ndikulumikiza kumapeto onse awiri ku zida zina. Zitsulo zamtunduwu nthawi zambiri zimapangidwa ndi porcelain yonyowa, yomwe kenako imapakidwa utoto.
Tili ndi mzere wonse wopanga kuphatikizapo labu yoyesera. Ndipo tikhoza kupereka zinthuzo malinga ndi zomwe mukufuna.