VS1(ZN63A)-12 indoor high voltage vacuum circuit breaker

ZN63A(VS1)-12 indoor high voltage vacuum circuit breakerOverviewVHE-12 vacuum circuit breaker with 12KV rated voltage,indoor distribution device of three-phase ac 50HZ. Available for industrial and mining enterprises,power plant and substation in electric equipment protection and control,Especially suitable for the fields of free oil, less maintenance and frequent operation.  It can be configured in the centrally installed switchgear,double switchgear,fixed switchdaer for control and protection of the high voltage electrical equipment.  It meets the standard of GB1984, DL403, IEC56, 694 publication.The main characteristics of the product are:1.Circuit breaker operating mechanism and circuit breaker ontology integration design,The overall layout is reasonable, beautiful and concise;2.Circuit breaker can defense all kinds of environmental impact because of its used vertical insulation sleeve,Therefore circuit breaker can be applied to all kinds of special environmental conditions;3.Fixed and handcart types can satisfy different equipped requirements for cabinet and circuit breaker;4.Few maintenance,Usually the operating mechanism only need doing a bit of cleaning or lubrication.The normal conditionsAmbient temperature: max +40°C min -15ºC(conveyance under -30ºC is allowed);Altitude: ≤1000m;Relative humidity: daily average relative humidity: ≤95%; monthly average relative humidity:≤90%; daily average saturated vapor pressure: ≤2.2*10-3 MPa; monthly average value :≤1.8*10-3 MPa;Earthquake intensity: ≤8 degree;The installation site should be no explosion,severe vibration,chemical corrosion and serious pollution.                                                  Main technical dataNo.ItemsUnitValue1Rated voltageKV122Rated insulation levelRated lighting impulse withstand voltage (peak)KVPhase,over the ground 75,fracture80Short-time power frequency withstand voltage(1min)KVPhase,over the ground 42,fracture483Rated short circuit breaking currentKA202531.5404Rated currentA6301250630 12501600 20002500 31501250 16002000 25003150 40005Rated thermo stability current(valid)KA202531.5406Rated dynamic stability current(peak)KA5063801007Rated short-circuit making current(peak)KA5063801008Rated operations of short-circuit breaking current interruptionTimes50(40KA as 30)9Power frequency withstand voltage of secondary circuit(1 min)V200010Rated operating sequence  opening-0.3S-closing opening-180S- closing opening /opening-180S- closing opening -180S- closing opening (40KA)11Rated thermo stability timeS412Rated breaking current(a capacitor/back to back capacitor)A630/400   800/400(40KA)13Mechanical lifeTimes30000Note:When the rated current reached 4000A, You need enforce air cooling.  /* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1