GCK mtundu otsika-voteji kabati switchgear ntchito magetsi zomera, substations, petrochemical, zitsulo kugudubuzika, kuwala mafakitale nsalu ndi mafakitale ena ndi mabizinesi migodi ndi malo okhala, nyumba mkulu-nyamuka ndi malo ena, monga AC 50 ~ 60Hz, oveteredwa ntchito voteji. AC 660V ndi m'munsimu dongosolo mphamvu ya zida kugawa mphamvu mphamvu kutembenuka, kugawa ndi kulamulira.