High/Medium Voltage Vacuum Circuit Breaker Mv Vcb Gas Insulated Vacuum Circuit Breaker

Overview:                        Zn63 (VS1) - 12 series indoor handcart type high voltage vacuum circuit breaker is an indoor switchgear with three-phase AC 5ohz and rated voltage of 12kV. It can be used for the control and protection of industrial and mining enterprises, power plants, substations and electrical facilities, and is suitable for places with frequent operation. The operating mechanism is integrated with the circuit breaker body, which can be used as a fixed installation unit or a special propulsion mechanism to form a handcart unit. The main circuit part can adopt the integral fixed sealing pole to realize the miniaturization, high reliability and maintenance free of the circuit breaker. It can be equipped with kyn28a-12 (GZS) and other middle mounted handcart type switchgear, and the fixed type can also be used for XGN series fixed switchgear. Model and meaning:The main technical parameters:   Serilnumber                  Namecompany                                 Data        1Rated wltageKV                                                  12      2Rated frequeHz                                                   50      3Rated insulation levelImin Power frequency withstand voltageKATo ground/ phase to phase 42/48 Lightning impulse withstand voltage (peak value) To ground/ phase to phase 75/85          4Rated short circuit breaking currentKA202531.540         5Rated currentA6306301250160012501600125012502000250020002500         6Rated short time breaking current (effective value)KA202531.540         7Rated peak breaking current (peak value) 506380100         8Rated short circuit making current (peak value) 506380100         9Rated short circuit current durationS4        10Mechanical lifeSecond20000        11( 1min)Power frequency withstand voltage of secondary circuit (1min)V2000        12Rated operation sequence Oh-t-onoh-tl - onoh                      20kA,25kA,31.5kA t=0.3s t1=180s; 40kA t=180s t1= 180s  Use environmental conditions:A, ambient air temperature: upper limit +40. Lower limit-15 DEG c;B, altitude: less than 1000m (for higher altitude, is rated insulation level increase);C, and amplitude: the earthquake intensity is not more than 8 degrees;The daily average value ofD, and air relative humidity≤95%, and the average monthly value≤90%E, fire, explosion, danger, serious pollution, chemical corrosion and violent vibration.Shape and installation dimensions:  /* 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