详细说明
Product Name: Outdoor Sf6 Gas Circuit Breaker Model NO.: JG Certification: ISO9001-2000 Function: OVP(Overvoltage Protection) Type: Circuit Breaker Poles Number: 3 Structure: ACB Installation: Fixed Arc-extinguishing Medium: SF6 Speed: Normal Type Circuit Breaker Operation: Manual Type Breaking Capacity: High Voltage Circuit Breakers Transport Package: Wooden Packing Origin: China Product Description Outdoor SF6 Gas Circuit BreakerMedium voltage circuit-breakers for outdoor installation use sulphur hexafluoride gas (SF6) to extinguish the electric arc and as the insulating medium.Breaking in SF6 gas takes place without current chopping or generation of overvoltages.These characteristics guarantee a long electrical life for the circuit-breaker and limited dynamic, di-electric and thermal stresses on the installation.The GSH type of stored energy and free release mechanical operating mechanism allows opening and closing operations through local and remote control.The operating mechanism, the activating kinematics of the moving contacts and the anti-condensation heater are located inside a tight metal enclosure which also acts as the support for the poles.The above-mentioned structure is supported by a frame made of telescopic metal sections which allow the height of the circuit-breaker terminal to be adapted from 2800 mm to 3700 mm.The metal enclosure has IP 54(*) degree of protection and is fitted with a tight door with an inspection window.The circuit-breaker is compact and ensures a high level of sturdiness and excellent mechanical reliability.The enclosure is made out of a steel plate with adequate surface protection by a special metalising and painting process. The support structures are hot dip galvanised.Circuit-breaker on columnJG-12/24JG-36JG-40StandardsIEC 62271-100•••Rated voltageUr [kV]12/243640.5Rated insulation voltageUs [kV]12/243640.5Withstand voltage at 50 HzUd (1 min) [kV]70 (dry) /60 (wet)95 (dry) /80 (wet)95 (dry) /80 (wet)Impulse withstand voltageUp [kV]125/150200200Rated frequencyfr [Hz]50-6050-6050-60Rated normal current (400C)lr [A]125025001250250012502500Rated breaking capacityIsc [kA]25252525252531.531.531.531.531.531.5Rated short-timeIk [kA]252525252525withstand current (3 s)31.531.531.531.531.531.5Making capacityIp [kA]636363636363808080808080Operation sequence[O-0, 3s-CO-15s-CO]•••Opening time[ms]45+1045+1045+10Arcing time[ms]10-1510-1510-15Total breaking time[ms]55-6055-6055-60Closing time[ms]75+1075+1075+10Overall dimensionson frame3090 - 38403090 - 38403090 - 3840H [mm]L [mm]900900900P [mm]686686686Weight[Kg]900900900SF6 gas absolute pressureRated service value [kPa]380380550Operating temperature (1)[0C]-25...+40-25...+40-25...+40TropicalisationIEC: 60068-2-30, 721-2-1•••Electromagnetic compatibilityIEC: 60694, 61000-6-2, 61000-6-4•••Solar radiation[W/m2]100010001000Presence of pollutionIEC 815 - table 1Level IIILevel IIILevel IIICreepage distance[cm/kV]2.52.52.75Ice coating[mm]101010Wind speed[m/s]343434Earthquake resistance[g]0.30.30.3Static force on the terminalsLongitudinal [N]750750750Transversal [N]500500500Vertical [N]750750750(1) For lower operating temperatures, please consult us.
