China Fzn25 12kv Vacuum Interrupter for Indoor Load Breaking Switch (102B), Find details about China Circuit Breaker, Vacuum from Fzn25 12kv Vacuum Interrupter for Indoor Load Breaking Switch (102B)
Main Technical Data | |
Rated Voltage | 12kV |
Rated Current | 630A |
Rated Frequency | 50Hz |
Rated Short-time power frequency withstand voltage(1min) | 42kV |
Rated Lighting impulse withstand voltage | 75kv |
Rated short-time withstand current | 16/20KA |
Rated peak withstand Current | 40/50kA |
Rated short-circuit making current | 40/50kA |
Rated short-circuit making current | 630A |
Rated active load breaking current | 630A |
Rated cable charging breaking current | 10A |
Rated sigle capacitor bank breaking current | 400A |
Rated duration of short-circuit | 4s |
Mechanical life | 10000times |
Contact closing force due to bellows and atmosphere | 70±40N |
Counterforce at rated contact stroke | 120±50N |
Circuit resistance at rated contact force | ≤45μΩ |
Shelf life | 20 years |
Contact erosion limit | 3mm |
Weight of moving parts | ≤0.7kg |
Mechanical Data Required for matched vacuum switchgear | |
Rated contact stroke | 6±1mm |
Average opening speed | 1.0±0.2m/s |
Average closing speed | 0.65±0.2m/s |
Added contact force | 700/900±50N |
Contact bouncing duration at closing operation | ≤2ms |
Contact bouncing bank amplitude of opening operation | ≤2mm |
Three-pole simultaneity | ≤1ms |