| Customization: | Available |
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| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Electric Type |
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Item |
Company |
Technical parameter | |
| Cyt (Bellinger) YT (ABB) | |||
| Rated voltage | KV | 550 | |
| Rated frequency | Hz | 50 | |
| Rated current | A | 4000 | |
| Rated short-circuit breaking current | Ka | 63 | |
| Near zone fault breaking current | Ka | 56.7 | |
| Rated out of step breaking current | Ka | 15.8 | |
| Rated peak withstand current | Ka | 160 | |
| Rated short-circuit making current (peak value) | Ka | 160 | |
| Rated short-time withstand current | Ka | 63 | |
| Rated short circuit duration | S | 3 | |
| Rated line charging breaking current (effective value) | A | 500 | |
| Rated short-circuit continuous breaking times | second | 20 | |
| Shunt capacitor value (per fracture) | PF | 2500 | |
| Resistance value of parallel combined switch (single pole) | Ω | 400 ± 5% (can be configured according to system requirements) | |
| Mechanical life of circuit breaker | second | 5000 | |
| Rated SF6 gas pressure (20 ºC) | MPa | 0.6 | |
| Moisture content of SF6 gas in the body (when leaving the factory) | PPM | ≤150 | |
| Annual leakage rate of SF6 gas | %The | ≤0.5 | |
| Weight of single pole SF6 gas | Kg | 20 (without resistance) /25 (with resistance) | |
| Single pole weight of circuit breaker | Kg | 2840 (without resistance) /3800 (with resistance) | |
| Closing operating force / opening operating force | Kn | 60/130 | |
Allowable tension of terminal block |
Horizontal longitudinal | N | 2800 |
| Horizontal horizontal | N | 2400 | |
| vertical direction | N | 1000 | |
| Item | Unit | technical parameter | |
| SF6 gas zero gauge pressure 5min Power frequency withstand voltage (effective value) |
One phase incoming and outgoing line | KV | 476 |
| Relatively | KV | 476 | |
| Rated short-time power frequency withstand voltage 1min (effective value) |
One phase incoming and outgoing line | KV | 740(+315) |
| Phase to ground and phase to phase | KV | 740 | |
| Rated lightning impulse withstand voltage 1.2/50μS (peak) |
One phase incoming and outgoing line | KV | 1675(+450) |
| Phase to ground and phase to phase | KV | 1675 | |
Rated operating impulse withstand voltage 250/2500μS (peak) |
One phase incoming and outgoing line | KV | 1175(+450) |
| Interphase | KV | 1950 | |
| Relatively | KV | 1300 | |
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