Audited Supplier
318GFR
High Voltage Circuit Breakers
Energy-storage Type
High-Speed Circuit Breaker
Vacuum
Fixed
Vacuum
3
Vacuum
Vacuum
ISO9001-2000, CQC
12 Month
12kv
1250A
75kv
25ka
ZGVE
Standard Export Packing.
Vacuum
Wenzhou
8538900000
Product Description
12KV Sealed Pole For Vacuum Interrupter(318GF)
Main Technical Data
Dimensional Drawing
Main Technical Data
| Main Technical Data | |
| Rated Voltage | 12kV |
| Rated Current | 630/1250A |
| Rated Frequency | 50Hz |
| Rated Short-time power frequency withstand voltage(1min) | 42kV |
| Rated Lightning impulse withstand voltage | 75kv |
| Rated short-circuit breaking current | 25KA |
| Rated short-circuit making current(peak) | 63kA |
| Breaking operations of rated short circuit breaking current | 30 timies |
| Rated sigle capacitor bank breaking current bank | 630A |
| Rated short-time withstand current | 25kA |
| Rated peak withstand current | 63kA |
| Rated duration of short-circuit | 4s |
| Mechanica life | 20000times |
| Contact closing force due to bellows and atmosphere | 120±50N |
| Counterforce at rated contact stroke | 190±60N |
| Circuit resistance at rated contact force | ≤25μΩ |
| Shelf life | 20 years |
| Contact erosion limit | 3mm |
| Weight of moving parts | ≤1.3kg |
| Mechanical Data Required for matched vacuum switchgear | |
| Rated contact stroke | 10±1mm |
| Average opening speed | 1.0±0.25m/s |
| Average closing speed | 0.65±0.15m/s |
| Added contact force | 3150±200N |
| Contact bouncing duration at closing operation | ≤2ms |
| Contact bouncing bank amplitude of opening operation | ≤2mm |
| Three-pole simultaneity | ≤1ms |
Dimensional Drawing
