Brand: ROCKWILL 220kV power transmission substations, large solar / wind farm booster stations, industrial heavy power supply, urban central substations.
This document Includes design, manufacturing, installation and commissioning drawings for the RHP-245 GIS.
RHP-245 is ROCKWILL 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. Primary components including CB, DS, ES and CT/PT are enclosed in SF6 metal tanks, while main busbar adopts air insulation. It features compact layout, reliable interlock and online gas density monitoring. Widely used in 220kV transmission substations, large-scale renewable energy booster stations and urban power grids.
The modular gas‑tank main units feature high reliability with up to 25‑year maintenance‑free service life. Annual SF₆ leakage rate ≤0.5%. Mechanical life reaches 6000 times. Only open‑type busbar part needs regular inspection. Overall maintenance workload is far lower than traditional AIS. For altitude over 1000 m or‑40 °C extreme cold area, please inform us for customized insulation or anti‑liquefaction measures.
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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