Eberry Electric Co., Ltd.
We are a professional manufacturer of vacuum circuit breakers. We have 15 years of experience in design and development. We have a professional team responsible for comprehensive solution.
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ZW32-24KV power breaker remote control Outdoor Vacuum Circuit Breaker
♦ Installation way: pole mounted;
♦ Operating mechanism: spring operating mechanism and permanent magnetic operating mechanism;
♦ Pole type: integrated pole;
♦ Application: outdoor 24kV substation, power plant.
♦ Operation type: manual, electric, remote control.
Environmental Conditions
♦ Ambient temperature: -35°C ~ +40°C;
♦ Altitude: ≤2000m;
♦ Wind speed ≤ 35m/s;
♦ Earthquake intensity: ≤8 level;
♦ Filthy level: IV;
♦ Installation places: No fire, explosion hazard or serious filthy.
Main Technical Parameters
| No | Item | Unit | Value |
| 1 | Rated voltage | kV | 24 |
| 2 | Rated current | A | 630/1250 |
| 3 | Rated frequency | Hz | 50 |
| 4 | Rated thermal current | kA | 20/25 |
| 5 | Rated short circuit breaking current | kA | 20/25 |
| 6 | Rated dynamic current (peak) | kA | 50/63 |
| 7 | Rated short-circuit closing current (peak) | kA | 50/63 |
| 8 | Thermal stability time | S | 4 |
| 9 | Rated operating sequence | Times | O-0.3S-CO-1 80S-CO |
| 10 | 1 min power frequency withstand voltage (inter-phase, earth/fracture) | kV | 65 |
| Lightning impulse withstand voltage (peak) (inter-phase, earth/fracture) | 125 | ||
| Secondary circuit 1min power frequency withstand voltage | 2 | ||
| 11 | Mechanical life | Times | 10000 |
| 12 | Rated short-circuit breaking current breaking times | Times | 30 |
| 13 | Rated circuit breaking times | Times | 10000 |
| 14 | Contact distance | mm | 12±1 |
| 15 | Over travel | mm | 3±1 |
| 16 | Inter-phase center distance | mm | 380±1.5 |
| 17 | Three phase closing and opening asynchronism | ms | ≤2 |
| 18 | Contact closing bounce duration | ms | ≤2 |
| 19 | Closing time | ms | 25~80 |
| 20 | Opening time | ms | 23~50 |
| 21 | Average opening speed | m/s | 1.1~1.7 |
| 22 | Average closing speed | m/s | 0.5~0.9 |
| 23 | Main conductive circuit resistance | μΩ | ≤80 |
