Audited Supplier
MK-CB2024
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
Technical parameters of circuit breaker
| No. | item | unit | Data | note | |
| 1.1 | installation | indoor/outdoor | |||
| 1.2 | Ambient temperature | ºC | -40 ~ 60 | ||
| 1.3 | sun's radiation | W/cm2 | 1000 | ||
| 1.4 | humidity | % | average day :95% | ||
| 1.5 | The altitude | m | ≤2000 | ||
| 1.6 | The wind speed | m/s | 34 | ||
1.7 | earthquake conditions | Horizontal acceleration | g | General area 0.15, strong earthquake area 0.3 | |
| Vertical | 0.075,0.15 | ||||
| acceleration |
- rating parameters
| No. | name | unit | parameter | note |
| 2.1 | Rated voltage | kV | 126 | |
| 2.2 | Nominal voltage | KV | 126 | |
| 2.3 | Max.working voltage | kV | 126 | |
| 2.4 | Rated current | A | 3150 | |
2.5 | Rated short time withstand voltage (4S) | kA | 40 | |
2.6 | Rated withstand voltage (peak value) | kA | 100 | |
2.7 | Rated power frequency withstand voltage | kV | 230 | To earth |
| 230+70 | interrupter | |||
2.8 | Rated lightning impulse withstand voltage(peak) | kV | 550 | To earth |
| 550+100 | interrupter | |||
2.9 | SF6 rated pressure | MPa | 0.4 | |
| 0.35 | Alarm |
| pressure | ||||
0.30 | Lock pressure | |||
| 3.0 | SF6 In a flat rate | % | ≤0.5 |
