KYN28-12 type steel-clad movable-type AC metal enclosed switchgear

The KYN28A-12(Z) (prototype number GZS1) steel-clad movable-type AC metal switchgear (hereinafter referred to as the "switchgear") designed by Chongqing Transformer Co., Ltd. is a complete distribution device for 3.6-12kV three-phase AC 50Hz single busbar and single busbar segmented system, mainly used in power plants, power transmission of small and medium-sized generators, distribution of industrial and mining enterprises, as well as power receiving and transmission of secondary substations in the electrical system, and starting of large high-voltage motors, for control, protection, and monitoring purposes. The performance of this switchgear meets the requirements of GB3906, IEC298 and other standards. It has the "five prevention" interlocking function: preventing the push-pull of circuit breaker handcart with load, preventing the circuit breaker from being accidentally switched on and off, preventing the circuit breaker from being switched off when the grounding switch is in the closed position, preventing accidental entry into live compartments, and preventing the grounding switch from being accidentally switched on when the power is on. It can be used with both ZN63 -12 (VS1) vacuum circuit breakers and ABB's VD4 Schneider HVX vacuum circuit breakers and other high-voltage circuit breakers, and it is actually a high-performance distribution device.