Rated voltage: 72.5kV
Rated current: 2500A,3150A,4000A
Rated short-circuit current: 40kA
Line charging current switching test: C2
Back-to-back capacitor bank current switching capability: BC2， Breaking current 4000A
Rated short-circuit breaking times: ＞22 times
Mechanical lifespan reaches: 10000 times
Low and high temperature tests: -50℃ ～+55℃
Annual SF6 leakage rate: ＜0.5%
Altitude: 5000m
The 72.5KV SF6 circuit breaker is suitable for high-altitude and high-altitude areas. The product consists of components such as inlet and outlet bushings, current transformers, arc extinguishing chambers, frames, and operating mechanisms. It has advanced technology and reliable quality. The product is used to cut off rated current, fault current, or conversion lines, achieve control and protection of the power system, and can also be used as a contact circuit breaker. Simultaneously capable of switching back-to-back capacitor banks C2 and switching reactors, it is the preferred circuit breaker for reactive power compensation circuits in substations with voltage levels of 330kV and above.
Specifications and Parameters:
| Rated voltage | 72.5kV |
| Rated current | 2500A,3150A,4000A |
| Rated short-circuit current | 40kA |
| Line charging current switching test | C2 |
| Back-to-back capacitor bank current switching capability | BC2， Breaking current 4000A |
| Rated short-circuit breaking times | ＞22 times |
| Mechanical lifespan reaches | 10000 times |
| Low and high temperature tests | -50℃ ～+55℃ |
| Annual SF6 leakage rate | ＜0.5% |
| Altitude | 5000m |
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