12kV Air-Insulated Switchgear
XD Baoji Electric Co.,Ltd is one of the leading China 12kv air-insulated switchgear manufacturers and suppliers,Website:, as a professional company, our factory is able to produce quality 12kV AIS, 12kv air-insulated switchgear products at competitive price.Product Description KYN28-12 series indoor AC metal enclosed switchgear is three-phase A.C 50Hz indoor complete distributing equipment with the voltage range 12KV. It is used for power plant to transmit power and used for electricity system, industrial and mineral enterprise to receive and distribute power. The structure of this switchgear is metal enclosed, withdrawable truck, the frame of the enclosure is made of steel plates which surface is covered by aluminum and Zinc, multiple bending and built-up with bolt. It can be equipped with VXB-12、VXB-12P、VS1-12 series vacuum circuit breaker, withdrawable truck with leading screw and nut mechanism, safe and reliable. The wrong operation can be avoided due to its function of the ‘FIVE PROVENTION’. It can meet the standard requirments of IEC62271-200、IEC62271-1、GB3906、GB/T11022 etc. Overall dimension (W×D×H mm)：800（650/1000）×1500（1800）×2350.Features of Product Altitude above sea level 4000m and below. Current rating up to 4000 A/50kA. Internal arc classified (IAC)：AFLR，31.5kA/1s. Equipped with VXB-12P series vacuum circuit breaker with embedded poles, with independent intellectual property. The internal barriers are made up of steel plate, and the loss of service continuity category (LSC) can meet the requirments of LSC2B. Can equipped with motor-driven earthing switch and motor-driven truck，to realize the unattended.Technical ParametersItemUnitDataRated voltagekV12Rated current A630、1250、1600、2000、2500、3150、4000Rated frequencyHz50Rated Short-time withstand current Main circuitkA/4s20、25、31.5、40Earthing switchkA/4s20、25、31.5、40Earthing circuitkA/2s17.4、21.8、27.4、34.8、43.5Rated peak withstand current Main circuitkA50、63、80、100Earthing switchkA50、63、80、100Earthing circuitkA43.5、54.5、68.5、87、108.8Degree of protectionEnclosureIP4XCompartmentIP2XRated insulation levelRated power-frequency withstand voltagekV/1min42Rated lightning impulse withstand voltagekV75IACFault currentkA31.5Durations1
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