Product Overview KYN28A-12 Indoor withdrawable metal-clad AC switchgear (referred as mid set cubicle ) is suitable for 3.6 12kv three phase AC 50Hz power grid. It can be used for single bus, single bus sectional and double bus power system. This product has the characteristics of small volume, beautiful shape, high strength, strong corrosion resistance, good interchangeability and universality. In fact, it is a power distribution device with superior performance and an ideal product to replace a variety of old switchgear. Main Tech Parameters Item Unit Paramete Rated voltage kV 12 Rated insulation level Power frequency withstand voltage(1min) P to P&P to E kV 42 Break kV 48 Lightning impulse withstand voltage P to P&P to E kV 75 Break kV 85 Secondary circuit withstand voltage(1min) kV 2 Rated frequency Hz 50 Rated current of VCB chamber A 630 Rated current of switchgear A 630 Rated peak withstand current kA 40,50,63,80,100,125 Rated short time withstand current kA 16,20,25,31.5,40,50 Rated short circuit duration s 4 Rated short circuit breaking current(for VCB) kA 16,20,25,31.5,40,50 Rated short circuit making current(peak)(for VCB) kA 16,20,25,31.5,40,50 Loss of service continuity category(LSC)of compartment LSC2B IP code Shell IP4X VCB chamber door opened IP2X Isolating sheet grade PM(metal partition barrier) Protection requirement of entering each compartment Enter into busbar compartment Special tools must be uesd Enter into cable compartment Accord with interlock specification and use special tools Enter into other high-voltage compartment Internal arcing grade IAC Dimension Width mm 650,800,1000 Depth mm 1500,1660 Height mm 2300 Mass kg 700-1200 Product Features 1.The central circuit breaker trolley helps prevent bus from the moisture and improve the insulation level. 2. draw-out type combination unit has good interchangeability and less maintenance. 3.The circuit breaker handcart can realize closed door operation. 4.Each compartment is equipped with an independent pressure release channel. 5. The "five prevention" device is reliable. 6.The busbar between agjacent panels are separated by wall bushing to limit the spread of fault. 7. The earthing switch has fast closing ability, convenient maintenance and grounding, and ensures personal safety. Scope of Application lt is mainly used for power generation, power distribution, substations, industrial and mining enterprises, real estate and secondary substations of power system. Company Profile Guangdong Haocheng Electric Co.,Ltd is one of the pillar enterprises in electrical equipment industry in Guangdong province. With the registered capital of CNY 50.01million. Our company is mainly engaged in R&D, production and sales of intelligent HV/LV power plants, power transformer, distribution box. We have strong marketing and technology development capabilities. With a construction area more than 20000 square meters and a production base more than 12000 square meters, HC electric has passed ISO9001, ISO14001, ISO45001 and national "3C" certification. Our company attaches great importance to R&D of independent intellectual property rights. With strong scientific research strength and new product development ability, we have undertaken and completed more than 20 innovation patents. In 2019, our company was recognized as "hi-tech enterprise" by science and technology, finance and tax bureau of Guangdong province. In 2020, our company R&D department was recognized as "Intelligent Distribution Equipment Engineering Research Center of Nanhai District, Foshan". Our scope of supply covers a variety of links in smart power grid. They are widely