KYN28A type indoor AC metal armored withdrawable switchgear 
 First, an overview 
 ??? The KYN28A type indoor AC metal armored away switch equipment series rated voltage 3-12kV three-phase AC 50Hz single busbar and single busbar system voltage power distribution installations. For the power plant power transmission, electrical systems and industrial and mining enterprises substation of electricity, power distribution and high voltage motor starting, control, protection, detection purpose. ??? This switch cabinet can meet GB3906, IEC298 standard requirements and has a circuit breaker to prevent misuse, to prevent negatively Hora handcart, to prevent the charged closing grounding switch, to prevent the transmission of the grounding switch in the ground position and to prevent mistakenly charged isolation "defense" function. Switchgear can be equipped with ABB, VD4 vacuum circuit breaker, but also with made VS1 vacuum circuit breaker, in fact, a superior performance of power distribution equipment. 
 ? Second, the main features of 
 Bolted from the cabinet structure of aluminum-zinc plate to multiple bending processing technology used by the CNC machine; 
 All operations in the state of the door closed; 
 The high level of protection to prevent debris and invasive pests; 
 Simple and effective "prevention" Interlock to prevent misuse; 
 Can be equipped with VS1 and VD4 type vacuum circuit breaker; 
 Replace the circuit breaker handcart exchange of good performance; 
 The cabinet can be mounted against the wall, before the ark, maintenance, and reduce floor space; 
 Ample cable room space can be connected to multiple cables; 
 ??? Breaker room and cable room can be the installation of the heater to prevent condensation and corrosion occur. 
 ? Three, structure 
 ?? Switchgear cabinet fixed and withdrawable part (handcart) composed of two parts. The cabinet enclosure and partition of the functional units are aluminum-zinc steel plate bolted together. Enclosure protection rating of the switchgear to IP4X level of protection for each compartment IP2X. Switchgear with overhead inlet and outlet, cable inlet and outlet and about the liaison function, switchgear arrangement of the various programs according to the application form to complete the design function of the power distribution unit. ??? Of the switchgear installation and debugging can be positive, you can against the wall to save floor space, reduced investment. 
 ? Four main technical parameters of the switchgear 
 Project units? Data? 
 Rated voltage kV? 3,6,10 
 Rated current A? 630? 1250? 1600? 2000? 2500? 3150 
 Rated frequency Hz 50 
 Rated short time withstand current kA,????? 20? 25? 31.5? 40 
 Rated peak withstand current of 50 kA,? 63? 80? 100 
 Rated power frequency withstand voltage between the pole on the ground the KV 42/1min 
 Fracture between 48/1min 
 Rated lightning impulse withstand voltage is very, very to the KV 75 
 Fracture of 85 
 Rated short circuit duration s 
 Degree of protection? Shell IP4X compartment between IP2X