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High Voltage Circuit Breakers
Electric Type
Normal Type Circuit Breaker
Vacuum
Fixed
MCCB
| Availability: | |
|---|---|
| Quantity: | |
| NO. | ITEM | UNIT | VALUE |
| 1 | Rated voltage | kV | 40.5 |
| 2 | Rated current | A | 1250/1600 |
| 3 | Rated frequency | Hz | 50 or 60 |
| 4 | Power frequency withstand voltage 1 minute (wet) (dry) phase-to-phase, phase-to-ground/break | kV | 80 95/95 |
| 5 | Lightning impulse withstand current (peak) phase-to-phase, phase-to-ground/break | kV | 185 |
| 6 | Rated short-circuit breaking current | kA | 25/31.5 |
| 7 | Rated short-circuit making current (peak) | kA | 63/80 |
| 8 | Rated peak withstand current | kA | 63/80 |
| 9 | 4s short-time withstand current | kA | 25/31.5 |
| 10 | Rated operating cycles | open - 0.1s - close/open -3s - close/open - 6sclose/open - 60s restore | |
| 11 | Rated number of short-circuit current breaking | times | 30 |
| 12 | Mechanical life | times | 10000 |
| 13 | Mechanism control voltage | V | AC/DC220 |
| 14 | Secondary circuit 1 minute power frequency withstand voltage | KV | 2 |
| NO. | ITEM | UNIT | VALUE |
| 1 | Contact Opening Distance | mm | 16±1 |
| 2 | Contact Overtravel | mm | 4±0.5 |
| 3 | Breaking Speed | m/s | 1.4-1.8 |
| 4 | Closing Speed | m/s | 0.4-0.8 |
| 5 | Contact Bounce Time during Closing | ms | ≤5 |
| 6 | Phase-to-Phase Distance | mm | 600±2 |
| 7 | Different Phases' Opening and Closing Asynchrony | ms | ≤2 |
| 8 | Conductive Circuit Resistance for Each Phase | μΩ | <80 |
| 9 | Closing Time | ms | 25~45 |
| 10 | Opening Time | ms | 20~45 |
| 11 | Weight | Kg | Approx 450 |