ʻO KYN28-12 mea hoʻololi i hoʻopaʻa ʻia he ʻekolu-phase AC 7.2-12kV, 50Hz i loko o ka hale kiʻekiʻe-voltage switchgear, a hiki ke hoʻolako ʻia me ka microcomputer intelligent form combined relay, telemetry, remote control, kamaʻilio mamao a me ka mālama ʻole ʻia. Hoʻokele ʻia nā kaʻa lima a pau o ka huahana e ka wili, a pani ʻia ka puka o ke keʻena ma hope o ke komo ʻana o ka trolley i ke kūlana hoʻāʻo. Hoʻokomo ʻia ka mea kiʻi kiʻi alumini zinc plate, ka hoʻohana ʻana i ka hale hui, hoʻonohonoho maʻalahi, ikaika maikaʻi, ʻaʻole deformation, hoʻohana nui ʻia i nā mea kanu mana mana, substations, ʻoihana a me nā ʻoihana mining, nā kaiāulu noho, ka uila kula, ka ʻoihana kūkulu a me nā kula ʻē aʻe. e ʻae a puʻunaue i ka ikehu uila, ka hoʻokō ʻana i ka mana, pale, nānā.