Indoor High Voltage Vacuum Circuit Breakers

Main Technical Data of Indoor High Voltage Vacuum Circuit Breaker:
Rated voltage : kv 40.5
Rated lighting impulse withstand voltage(peak) : kv 185
Rated short-time power frequency withstand voltage(1min) : kv 95
Rated short-circuit breaking current : kA 25 31.5
Rated current : A 1250/1600 1250/1600/2000
Rated peak withstanding current : kA 63 80
Rated operations of short-circuit breaking current interruption times : 20
Rated duration of short-circuit : s 4
Rated operating sequence : 0-0.3-CO-180s -CO
Supply voltage of open and close installation : v AC,DC220 AC,DC110
Closing time : ms 50~100
Opening time : ms 30~60
Rated single capacitor bank breaking current : A 630
Rated back to back capacitor bank breaking current : A 400
Mechanical life : times (M1 degree)10000
Mechanical characteristics adjustment data
Rated contact stroke : mm 22A 2
Contact over travel : mm 8A 2
Average opening speed : m/s 1.8A 0.2
Average closing speed : m/s 0.65A 0.2
Contact bouncing duration at closing operation ms a 3
Type of operating structure Special 3AV sprinf operating