KYN28-12/24 type Armored Mobile AC metal closed switchgear (referred to as: Medium cabinet). Suitable for 3.6~ 12KV three-phase AC 50Hz single-Bus segmented system complete set of power distribution device. Mainly used in power plants. Industrial and mining enterprises power distribution and power system two substations of the power. Power transmission and large high-voltage motor, etc., to carry out control protection, monitoring. This switchgear has to prevent the load push and pull circuit breaker handcart, prevent false division, circuit Breaker, prevent the grounding switch in a closed position when the circuit breaker. Prevent the interlocking function of the grounding switch when it is placed in the charged compartment and prevent it from being charged, and can be used to develop a self-made solid seal pole column vacuum in our company.Permanent Magnet Circuit breakerLV7 series. Can also be equipped with VS1 and VD4 vacuum circuit breaker, is actually a superior performance of the distribution device.