Outdoor SF6 Vacuum Circuit Breaker
VW20 series outdoor sf6 vacuum circuit breaker adopts explosion-proof and insulation structure uses vacuum arc extinguishing and SF6 gas as the insulating medium and widely applicated in 11KV and 33KV medium voltage electric power system. Both the inlet and outlet tubes are improved in respect of sealing performance, no leakage of SF6 gas, unaffected by the external environment, the entirety sealing performance is excellent.
VW20 series sf6 vcb is small designed and operate reliable, these advantages of sf6 circuit breaker could ensure safety and without any maintenance during the service life. Because of the outside applications, VW20 sf6 vacuum circuit breaker has the auto-reset function for ground fault: when the ground fault of the line occurs, the controller detects the ground fault current, it will drive the switch to be opened automatically to isolate the faulty area, directly solve the ground fault.
- Features
- Data Sheet
- Contact Us Now
Features of outdoor sf6 vacuum circuit breaker
Outdoor sf6 vacuum circuit breaker adopts vacuum interrupter for arc extinguishing, it uses composite insulation structure of epoxy solid and air insulation, which avoids damage to the environment caused by using SF6 gas.
Outdoor sf6 vcb could be remote controlled and automatically protected which also named as Overcurrent fault isolation function: the device has overcurrent protection function, when overcurrent fault occurs at the switch load side, the switch starts instantaneous quick-break function to trip the switch, in order to isolate the overcurrent fault from the main line, thus it does not affect normal operation of the main line;
| Item | Unit | Data | ||||
| Rated voltage | KV | 12 | ||||
| Rated current | A | 630 | ||||
| Rated frequency | HZ | 50 | ||||
| Rated short-time withstand current (RMS) | KA/4S | 20 | ||||
| Rated peak withstand current | KA | 50 | ||||
| Rated short-circuit making current (peak) | KA | 50 | ||||
| Rated short-circuit breaking current | KA | 20 | ||||
| Rated short-circuit breaking current times | Times | 30 | ||||
| Rated active load breaking current | A | 630 | ||||
| Rated breaking capacity of no-load transformer | KVA | 1250 | ||||
| Rated closed loop breaking current of distribution line | A | 630 | ||||
| Rated cable charging breaking current | A | 25 | ||||
| 1min Power frequency withstand voltage | Wet test, to-ground | KV | 30 | |||
| Dry test phase-to-phase, to-ground,isolating distance | KV | 42 | ||||
| Lightning impulse withstand voltage (peak) | Isolating distance | KV | 85 | |||
| Phase-to-phase and to-ground | KV | 75 | ||||
| IP code | IP67 | |||||
| External insulation creepage distance | ＞ 30mm/Kv | |||||
| Rated operating sequence | ON-0.3s-ON/OFF-180s-ON/OFF | |||||
| Operating times at rated current | 10000 | |||||
| Mechanical operating times | 10000 | |||||
| Altitude | m | 2000 | ||||
| Max ambient temperature | ℃ | 40 | ||||
| Min ambient temperature | ℃ | -40 | ||||
| N.W. | kg | 140 | ||||
Related Products
Become An Expert When Importing Medium Voltage Electrical Equipments
