Drawings · ROCKWILL

RHP-170 Hybrid Gas Insulated Switchgear

Q: Does Rockwill supply OEM / ODM service for RHP series HGIS?

Yes. Rockwill provides OEM ODM service for RHP‑type HGIS. We select qualified regional partners with solid high‑voltage engineering capability and local after‑sales capacity. We focus on technical‑oriented cooperation rather than simple resale business.

**Brand: ROCKWILL** >154kV/161kV overseas transmission substations, large solar & wind farm booster stations, urban transmission substations, power projects with limited land area.

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Updated2026.09

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SwitchgearGas Insulated Switchgear

Document description

This drawing set provides detailed technical drawings of the RHP-170 Hybrid Gas Insulated Switchgear.

RHP-170 is ROCKWILL segregated-tank hybrid gas insulated switchgear (HGIS) rated at 170kV, complying with IEC 62271-203, IEC 62271-100, 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. CB, DS, ES and CT are enclosed in separated SF6 metal tanks, main busbar uses air insulation. It features independent gas compartments for each phase, compact layout and factory pre-testing. Widely used in overseas 154/161kV transmission substations, large renewable energy booster stations and urban power grid projects.

Frequently asked questions

What are the core advantages of RHP type HGIS compared to traditional GIS and AIS?

Land saving: 40% -60% footprint savings compared to AIS;
Cost advantage: 30% lower than GIS investment and 45% -50% lower than total investment;
Less maintenance: 25 years maintenance free, mechanical lifespan of 6000 times;
Environmental Protection: SF6 usage is only 20% of GIS, with an annual leakage rate of ≤ 0.5%.

What is the core upgrade of digital RHP type HGIS compared to traditional switchgear?

Full digitalization: Information collection, transmission, and processing are all digital, with fiber optic cables replacing cables;
High compatibility: Following the IEC 61850 standard, devices are interconnected and interoperable;
Easy to expand: New features do not require modification of existing devices, only need to be connected to the network.

Does Rockwill supply OEM / ODM service for RHP series HGIS?

Yes. Rockwill provides OEM & ODM service for RHP‑type HGIS. We select qualified regional partners with solid high‑voltage engineering capability and local after‑sales capacity. We focus on technical‑oriented cooperation rather than simple resale business.

RHP-170 Hybrid Gas Insulated Switchgear

Document description

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Frequently asked questions