KYN28A-12 (Z) (GZS1) nau'in sulke mai sulke-bude nau'in nau'in nau'in nau'in nau'in nau'in nau'in AC da ke kewaye da shi.Ya dace da tsarin wutar lantarki na AC 50HZ guda uku, ana amfani da shi don karɓa da rarraba wutar lantarki da sarrafa kewaye,
kariya da saka idanu.Wannan samfurin ya dace da ma'auni: GB3906 "3 ~ 35kV AC karfe-kyaɗe switchgear", GB / T11022 "Standard Common Technical Bukatun for High Voltage Switchgear da Control Equipment", IEC60298 "Rated Voltage IkV da Sama AC Karfe-Samawa da kuma Sama AC Metal-".