KYN28A-12(Z) armored moving type A.C. high-voltage metal-enclosed switchgear, with a single busbar of 3.6-12kV, three-phase AC 50Hz and complete sets of equipment of single-busbar power distribution sub-system, it can be used in power station, small and medium electric generator's power transmission, power distribution of industrial and mining enterprises, power receiving and transmission of the electrical utilities' secondary substations, including the start of large high-voltage electric motor.

For the purposes ofcontrolling, protecting, monitoring, the switchgear totally meets IEC298, GB3906, DL/404 standards. It can prevent such situations: use circuit breaker with a load sliding, breaking or closing circuit-breaker by wrong, closing circuit-breaker when the earthing switch is in the closed position, strayed into the live interval, closing the earthing switch with electrification. It can equipped with ABB's VD4 circuit breaker or Chinese-made VSI vacuum circuit breakers, certainly it is a power distribution equipment of superior performance.