GZS1-12(KYN28A-12) metal armor draw-out type switch cabinet

　　 GZS1-12(KYN28A-12) metal armor draw-out type switch cabinet is complete distribution equipment of single bus system and its subsection system with three phases AC 50Hz 3-12kV voltage, it is mainly used for electricity transportation in power plant, medium and small scale generator, electricity distribution in industrial and mining establishment, electricity reception, transportation in secondary substation, and large scale high voltage electromotor start, acting as control protection and supervision. This switch equipment can satisfy Standard DL/T404-91, IEC298, and GB3906, has functions that can prevent cutting breaker when load on, avoid wrongly close or cut breaker, and prevent closing breaker when earth switch is on makeposition, avoid to enter into electriferous isolation chamber, avert to wrongly close interlock of earth switch with electrification. It also can match with VBI, VS1 vacuum breaker, VD4 vacuum breaker produced by ABB Company. The cabinet body applies good quality imported plate applied aluminum and zinc which can anti corrosion and oxidation, there is no need to do surface processing after finish process, its earth continuity is good. The handcart adopts screw mandrel to push and drop out, operation is convenient and agile. The valve structure adopts upper valve and lower valve which are not of linkage, the electriferous side valve can be locked when make maintenance to ensure personal safety of maintainer, it is a excellent distribution equipment.