12kV Switchgear

Joyelectric International is a professional China 12kv switchgear distributor and agent among those well-known such manufacturers and suppliers, welcome to order 12kv switchgear products from our factory and company.KYN28-12(Z) Indoor HV Vacuum SwitchgearMain charateristicsl The enclosure is made of aluminum-zinc coated sheet processed by bending several times.l All operations should be done under the door closed.l The hihg protection degree can avoid ingression of substance or insects enter.l Wrong operation can be avoided due to its simple and effective "Five Prevention".l It can equipped with ZN63A and VD4 type vacuum circuit breakers.l For the truck has good interchangeability, it is easy to change vacuum circuit breakers.l For saving space, the switchgear can be installed against wall and maintained from the front side.l There are enough place for connection cables.l Instant earthing switch can be used for eathing operation and short circuiting operation.l It can be separated equipped with heater inside the VCB compartment and cable compartment to prevent condensation and erosion.l It conforms to GB3906.DL404-1997 and refers to IEC-298 standard.Applying ambient conditionsAmbient temperature: The max. temperature should below +40℃, the min .temperature should above -15℃.The height above sea level should be no higher than 1000m.The earthquake intensity should be no more than 8 degree.Relative humidity: The average humidity of a day should be no more than 95%.The average humidity of a month should be no more than 90%.Water vapour pressure: The average vapour pressure of a day should be more than 2.2kPa. The average vapour pressure of a month should be no more than 1.8kPa.It should be used in the place where it is free from fire, explosion, serious fifth, chemical erosion and vibration.The main technical specification of the cubical switchboard            No.NameUnitData1Rated voltagekV3.6  7.2  122Rated currentA630  1250  1600  2000  2500  3150  40003Rated frequencyHz504Rated short time withstand currentkA16  20  25  31.5  40  505Rated peak withstand current40  50  63  80  100  1256Rated power frequency withstand voltagePole to pole,pole to earthkV42/1minAcross nterrupter48/1min7Rated lightning impulse withstand voltage Pole to pole,pole to earth75Across nterrupter858Rated short-time durationS49Degree of ProtectionIP4XMain technical specification of vacuum breaker                            No.NameUnitData1Rated voltagekV3.6  7.2  122Rated currentA630 1250 1600 2000 2500 3150 40003Rated short circuit breaking currentkA16 20 25 31.5 40 504Rated short-time withstand current16 20 25 31.5 40 505Rated peak withstand current40 50 63 80 100 1256Rated power frequency withstand voltagePole-to-pole,Pole-to-earthkV42/1minAcross nterrupter48/1min7Rated lightning impulse withstand voltage Pole-to-pole,Pole-to-earth75Across nterrupter858Rated short-time durationS49Opening timems20≤t≤6510Closing timems20≤t≤7511Breaking operations of rated short circuit- breaking currentCycle30(≤31.5kA)20(≥40kA)12Mechanical enduranceCycle20000(≤31.5kA)  10000(≥40kA)Main technical specification of spring operation mechanism                   NameUnitDataRated operating voltageOpening coilVDC220/110  AC220/110Closing coilPower of coilOpening coilW or VA245Closing coilPower of energy-stored motorW50Rated voltage of energy-stored motorVDC220/110  AC220/110Charging timeS≤10Structure Overall dimension and base mounting drawing mmHeight2350WidthRated current of small branch bus-bar is 1250A and the below shrt-circuit breakingcurrent is 31.5KA800Rated current of small branch bus-bar is 1600A and above1000Depth  Cale In-(out)1500  Overhead In-(out)1660Weight(kg)               800~1200                                                                                                                                            mmWidthDepthMNL8001500 cable63080014501660 overhead161010001500 cable830100014501660 overhead1610