GCK-W низкого напряжения распределительных устройств выкатного

Outline GCK-W low-voltage withdrawable switchgear applied to power plants, metallurgy, petrochemical, light industry and textiles, ports, building hotels and other places as AC three-phase four-wire or five-wire system, voltage 380V, Frequency 50H2 distribution power systems , and motor control purposes.GCK-W is fully type testing, factory assembled by the senior-type low-voltage switchgear, it is consistent with: IEC439 ,1-1992 GB 7251.1-1997Classification of switchgear 1 and 2 by electrical cabinets, busbar contact the cabinet 3, feed cabinet 4, 5 motor control cabinet, power switch cabinet 6, the power factor compensation cabinetUse of the environment Ambient air temperature is not higher than +40 degrees, not lower than -50 degrees, the average temperature within 24 hours no more than +35 degrees; Relative humidity at the highest temperature of +40 degrees, not more than 50% in the lower temperature allows a higher relative humidity, such as +20 degrees, 90%; Air clean, non-corrosive and explosive gas, no electrical conductivity and can damage the insulation of the dust; no significant impact shake and vibration of the occasion, the vertical tilt should not be installed more than 5 degrees; High altitude not exceeding 2,000 m; Users can not meet these conditions should consult with the factory.Main technical parameters Rated insulation voltage 660V Rated voltage 380V Rated power AC auxiliary circuit 380V, 220V Main busbar rated current 1000A, 1250A, 1600A, 2000A, 2500A, 4000A Main busbar rated short time withstand current 50KA (RMS) 1 sec Main busbar rated short time withstand current 105KA 1000A busbar rated current branch Rated short time withstand current branch bus 50KA (RMS) 1 sec Rated peak withstand current branch 50KA busbar