Audited Supplier
MK-EP1699
High Voltage Circuit Breakers
Electric Type
High-Speed Circuit Breaker
SF6
Open Frame
MCCB
3
Circuit Breaker
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB
ISO9001-2000, CE, CCC
Markevina or OEM
Wooden Case
Customized
China
Product Description
SF6 Circuit Breaker, Outdoor High Voltage 33KV 66KV 110KV 220KV 400KV 550KV
Technical parameters of circuit breaker
Insulation level of circuit breaker
Technical parameters of circuit breaker
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 | |
Insulation level of circuit breaker
| 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 | |
