1 | 330 kV sulfur-hexafluoride circuit breaker. | |
2 | The gases are: air, sulfur hexafluoride gas, perfluorocarbon gas. | |
3 | With sulfur hexafluoride gas to double as insulation interrupter and circuit breaker. | |
4 | For the past few years, a new kind of SF6 switch with graphite contactor had been released by Siemens. | |
5 | The invention aims to develop the sulfur hexafluoride gas controllable multi-pass ball valve group. |