Customization: | Available |
---|---|
Breaking Capacity: | High Voltage Circuit Breakers |
Operation: | Electric Type |
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Item | Unit | Specification |
Rate voltage | kV | 24 |
Rate current | A | 630/1250 |
Rate frequency | Hz | 50 |
Power frequency withstand voltage (1min) | kV | phase to phase/ground:65 fracture:65 |
Lightning impulse withstand current (peak) | kV | phase to phase/ground:125 fracture:145 |
Rated short-circuit making current (peak) | kA | 20/25/31.5 |
Rated short-circuit withstand current | kA | 50/63/80 |
Rated short-circuit withstand current(peak) | kA | 50/63/80 |
Rated short-time withstand current,4S | kA | 20/25/31.5 |
Rated short-circuit current breaking times | times | 30 |
Mechanical life | times | 10000 |
Power frequency withstand voltage of secondary circuit (1min ) | kV | 2 |
Item | Unit | Specification |
Contact stroke | mm | 12±1 |
Contact over-travel | mm | 3±1 |
Opening speed | m/s | 1.1-1.7 |
Closing speed | m/s | 0.5-1.0 |
Contact closing bouncing duration | ms | ≤2 |
Center distance between phases | mm | 395±2 |
Opening/Closing synchronism between poles | ms | ≤2 |
Conductive loop resistance of each phase | μΩ |
< 100 |
Closing time | ms | 25-60 |
Opening time | ms | 18-45 |
Declination of contact closing position | mm | ≤2 |
Rated frequency of energy storage motor | W | ≤40 |
Rated voltage of energy storage motor | V | AC/DC 220/110;DC24 |
Rated closing operating voltage | V | AC/DC 220/110;DC24 |