China 12kv Solid Insulated Cabinet with Solid Sealed Pole, Find details about China Circuit Breaker, Vacuum from 12kv Solid Insulated Cabinet with Solid Sealed Pole
Main Technical Data | |
Rated Voltage | 12kV |
Rated Current | 630/1250A |
Rated Frequency | 50Hz |
Rated Short-time power frequency withstand voltage(1min) | 48kV |
Rated Lighting impulse withstand voltage | 85kv |
Rated short-time withstand current | 25KA |
Rated peak withstand current | 50/63kA |
Rated short-circuit making current | 50/63kA |
Rated shirt-circuit breking current | 25/KA |
Breaking operations of rated short circuit breaking current | 30times |
Rated back-to-back cap acitor breaking current | 400A |
Rated sigle capacitor bank breaking current | 630A |
Mechanica life | 30000times |
Contact closing force due to bellows and atmosphere | 120±50N |
Counterforce at rated contact stroke | 180±50N |
Circuit resistance at rated contact force | ≤40μΩ |
Shelf life | 20 years |
Contact erosion limit | 3mm |
Part Discharge | ≤1pC |
Rated Operating Sequence | O-0.3s-CO-180s-CO |
Mechanical Data Required for matched vacuum switchgear | |
Rated contact stroke | 9±1mm |
Contact Connection Stroke | 4±1mm |
Average opening speed | 1.1±0.2m/s |
Average closing speed | 0.6±0.2m/s |
Added contact force | 2500±200N |
Contact bouncing duration at closing operation | ≤2ms |
Out of simultaneity of contact closing and opening | ≤1ms |
Max.overtravel | ≤2mm |