China Fzn21 Fn16A Vacuum Interrupter for Indoor Load Breaking Switch (101D), Find details about China Breaker, Vacuum from Fzn21 Fn16A Vacuum Interrupter for Indoor Load Breaking Switch (101D)
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-circuit withstand current | 16/20KA |
Rated peak withstand current | 40/50kA |
Rated short-circuit making current | 40/50kA |
Rated closed-loop breaking current | 630A |
Rated active load breaking current | 630A |
Rated cable charging breaking current | 10A |
Rated single capacitor bank breaking current* | 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 | 9±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 |