KYN28A-12 is the switchgear apply to the single busbar power system and single busbar sectionalized power system with three-phase AC 50Hz,7.2~12kV.It can be used for receiving & distributing electric power of the transmission and distribution control. The withdrawable part of the switchgear can be equipped with CKVB vacuum circuit breaker, vacuum contactor and other components. It used for reception and distribution of electricity transmission and distribution control. It can provide satisfied technological solution in various different cases according to cliens requirements.