What is the difference between the SF6 technology and the Vacuum technology used in Schneider Make MV Circuit Breaker.
SF6 and Vacuum are the two modern breaking techniques in the field of Medium Voltage. Refer the below table for the comparison of these two technologies:
| Protection & Switching of: | Vacuum | SF6 |
| Breaking medium Checking | no | yes |
| Failure rate (MTBF) | target as SF6 | 4 / 10000 units per year |
| Sealed for life | yes | yes |
| Maintenance | no | no |
| Life time | 30 years | 30 years |
| Mechanical Endurance | 10000 operations | 10000 operations |
| Electrical Endurance | 50 to 100 operations @ Isc | 20 to 50 operations @Isc |
| Overheads Line Transformer | (IEC E2 class possible higher TRV) | (IEC E2 class possible higher TRV) |
| Motor | Circuit Breaker Contactor + protection | Circuit Breaker Contactor |
| Capacitor Bank | (IEC C1 class : low probability of restrikes) | (IEC C2 class : no reignition, no restrikes) |
| Arc Furnace | CB | CB |
| CB + protection | CB + protection |
Released for: Schneider Electric Philippines
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