ZW20-12 Intelligent Outdoor High Voltage Vaccum Ci

NO.NameUnitParameter1Rated Voltage122Rated insulation level1 min power frequency withstand voltageWet:34,Dry:42(positive,negative),48(fracture and isolation clearance)Lightning impulse withstand voltage(peak)earth,phase75insulating fracture853Rated CurrentA400,6304Rated short-circuit breaking current (peak)KA12.5,16,205Rated short-circuit closing current (peak)31.5,40,,506Rated dynamic current (rated limit through-current)31.5,40-507Rated short time withstand current12.5,16,208Breaking times of rated short-circuit switch-off currentTimes309Rated duration of short-circuitS410Rated operating orderO-0.3S-CO-180S-CO11Mechanical lifeTimes1000012SF6 Gas Rated PressureMPa0.0113Operating mechanism rated switch-on voltageVAC220 Temperature condition:a>The ambient temperature: Max:+40°C, Min:-45°C, Max range of day temperature average:25°C;b>The relative humidity: daily average≤95%, montly average≤90%;c>The altitude:≤2000m(if the altitude needs increasing the rated insulating increases correpondingly);d>Amplitude:earthquake degree≤8;e>Wind pressure:≤700Pa(equals to wind speed 34m/s;