Widely used in 145kV outdoor transmission & distribution substations, power plant switchyards, industrial power stations and large renewable energy projects, for circuit switching, overload and short-circuit fault protection.
This 145kV live tank SF6 circuit breaker adopts self-blast arc extinguishing technology and fully complies with IEC standards
RHB-145 is outdoor live tank SF6 circuit breaker complying with IEC 62271-1 and IEC 62271-100 and KEMA type tested. Rated voltage 145kV, rated current up to 4000A, short-circuit breaking current up to 40kA. It adopts self-blast arc quenching and oil-free spring mechanism, composite or porcelain insulators optional. It is widely applied in 145kV outdoor transmission substations for power circuit control and fault protection.
Live tank SF6 gas circuit breaker for 40.5kV to 363kV systems, delivering reliable, high-performance protection for transmission and substation applications.
252kV outdoor self-energy high voltage SF₆ circuit breaker: Efficient arc quenching, high reliability for power system switching control & protection.
Live tank SF6 circuit breaker for 145kV to 362kV, offering reliable high-voltage protection and switching for transmission grid applications.
It complies with IEC 62271‑100 high‑voltage switchgear standard for outdoor transmission application.
Foundation static load:160000N; dynamic horizontal load 50000N, vertical dynamic load 240000N (including equipment self‑weight). Foundation height difference shall not exceed 2 mm.
It features compact footprint, high insulation level, intelligent secondary control & monitoring. The annual SF₆ leakage rate is less than 0.5% with a 30‑year maintenance cycle for substation outdoor application.
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