**Brand: ROCKWILL** >220kV transmission substations, large solar & wind farm booster stations, urban central substations, industrial heavy power supply projects with limited footprint.
This document contains the complete engineering drawings of the RHP-245(T) type Hybrid Gas Insulated Switchgear.
RHP-245(T) is ROCKWILL three-phase common-tank hybrid gas insulated switchgear (HGIS) rated at 245kV, complying with IEC 62271-203, IEC 62271-100 and GB/T7674, KEMA type tested. It adopts self-blast SF6 circuit breaker with bistable spring or spring-hydraulic operating mechanism. Available rated current:2000A,2500A,3150A,4000A; rated short-circuit breaking current:31.5kA,40kA,50kA. All primary live components including CB, DS, ES and CT/PT are enclosed inside one shared SF6 metal tank, while main busbar uses air insulation. With fewer sealing joints, it lowers gas leakage risk and reduces on-site installation workload. Widely applied in 220kV transmission substations, large renewable energy booster stations and urban power grid projects
RHP HGIS integrates circuit breaker, three‑position disconnector‑earthing switch, CT/VT into gas‑filled tank units, while retaining conventional open‑type AIS busbars for on‑site connection. Compared with full GIS, it consumes only 20% SF₆ gas, lowers equipment investment. Compared with conventional AIS, it greatly reduces footprint, connection points and maintenance workload. It balances compactness, cost and installation flexibility.
It fully complies with IEC international standards. Adopts optimized electric field design with partial discharge ≤3pC, standardized long-life spring mechanism (6000 cycles), and complete five-prevention mechanical interlock system to eliminate misoperation risks. Annual SF6 leakage rate ≤0.5%, ensuring stable and safe grid operation.
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