LW3-10 Outdoor High Voltage SF6 Circuit Breaker
SF6 gas is excellent insulating and arc-extinguishing medium, and it has best performance. Such equipment are the developing direction worldwide.
LW3-10 I II III type outdoor SF6 circuit breakers adopt SF6 gas as rec-extinguishing and insulating medium, which is applied to self-rotated arc extinguishing theory Operating mechanism is divided into I type hand charging spring operaring mechanism, II type motor charging spring operating mechanism and III type DC electromagnetic operating mechanism. All mechanism can cooperate with breaker body very well.
Main Technical Parameters
| Item | Description | Unit | Data | |||
| 1 | Ratedvoltage | KV | 10 | |||
| 2 | Max.voltage | KV | 11.5 | |||
| 3 | Ratedinsulationlevel(0.25Mpa,20℃) | lightningimpactwithstandvoltage | kv | 75 | ||
| 1minpowerfrequencywithstandvoltage | 42 | |||||
| Rainingwithstandvoltage | 34 | |||||
| Anti-phaceimpactwithstandvoltage | 85 | |||||
| 4 | Insulationlevel(0Mpa.20℃) | 1minpowerfrequencywithstandvoltage | KV | 30 | ||
| 1minanb-phasewithstandvoltage | 30 | |||||
| 5minmaximumplasevoltage | 9 | |||||
| 5 | Ratedcurrent | A | 400630 | |||
| 6 | Ratedbreakcurrentonshorting | KA | 6.3812.5 | |||
| 7 | Differentphasetogroundreclosingbreakingcurrent | KA | 5.57.110.9 | |||
| 8 | Breakingcurrenton0Mpa | A | 400630 | |||
| 9 | Ratedinsulationlevel | Itype | OC-180S-CO-180S-CO | |||
| II,IIItype | OC-0.3S-CO-180S-CO | |||||
| 10 | Ratedmakingcurrent(peak) | KA | 16 | 20 | 31.5 | |
| 11 | Rateddynamiccurrent(peak) | KA | 16 | 20 | 31.5 | |
| 12 | Ratedthermalstabilitycurrent | KA | 6.3 | 8 | 12.5 | |
| 13 | Ratedthermalstabilitytime | S | 4 | |||
| 14 | Speedatinstantofcontactstouching | M/S | 2.6±0.2 | |||
| 15 | Speedatseparatingofcontactstouching | M/S | 2.6±0.2 | |||
| 16 | Inherentclosingtime | II,IIItype | S | ≤0.06 | ||
| 17 | Inherentclosingtime | Itype | S | ≤0.06 | ||
| II,IIItype | ≤0.04 | |||||
| 18 | Ratedworkingpressure | Mpa | 0.35(20℃) | |||
| 19 | Minworkingpressure | Mpa | 0.25(20℃) | |||
| 20 | Rateofleakinginayear | % | ＜1 | |||
| 21 | Mechanicalenduranceoperation(continuous) | Times | 6000 | |||
| 22 | Weight | Itype | Kg | 122 | ||
| IItype | 130 | |||||
| IIItype | 132 | |||||
| 23 | ThewatercontentofSF6 | PPM | ≤150 | |||
Note:Please contact the factory to confirm the latest parameters