Vacuum Interrupter (Zw1)

Main technical data:
rated voltage : 12kV
rated current : 630A
rated frequency : 50Hz
rated short-time power frequency withstand voltage : 42kV
rated lightning impulse withstand voltage : 75kV
rated short-circuit breaking current : 12.5/16/20KA
rated short-circuit making current : 31.5/40/50kA
rated operations of short-circuit breaking current interruption : 30 times
rated single capacitor bank breaking current : 400A
rated short-time withstand current : 12.5/16/20KA
rated peak withstand current : 31.5/40/50kA
rated duration of short-circuit : 4s
mechanical life : 10000times
contact closing force due to bellows and atmosphere : 70 & plusmn;40N
counterforce at rated contact stroke : 120 & plusmn;50N
contact erosion limit : 3mm
weight of moving parts : 0.7kg
average opening speed : 1.00.25m/
average closing speed : 0.650.15m/s
added contact force : 900/1300/1600100N
contact bouncing duration at closing operation : 2ms
contact bouncing bank amplitude of opening operation : 2mm
three-pole simultaneity : 1ms