RGIS Type C-GIS switchgear for old substation retrofits 12kV-40.5kV
Key attributes
| Brand | ROCKWILL |
| Series | RGIS |
| Rated Voltage | 10kV-35kV |
| Maximum Operating Voltage | 12-40.5kV |
| Rated Power Frequency Withstand Voltage | 42-95kV |
| Rated Lightning Impulse Withstand Voltag | 75-185kV |
Description
The RGIS Type C-GIS is a compact gas-insulated switchgear designed for medium-voltage systems. Integrating a vacuum circuit breaker, a three-position disconnector, and an intelligent control unit, it delivers high reliability and cost-effectiveness as its core advantages. Rated for 12 kV / 24 kV / 40.5 kV indoor distribution applications, it provides safe and efficient power distribution for critical loads.
Product Showcase Video
Key Highlights
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Compact and space-saving: Modular design optimizes floor space utilization; pre-assembled enclosure for easy installation and transport; supports expansion on both sides.
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Safe and reliable: Fully sealed stainless steel gas compartment; three-position disconnector with mechanical interlocks; multi-chamber partitioning with pressure relief channels-multiple layers of protection eliminate safety risks.
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Intelligent and easy to maintain: Integrated measurement, protection, and control unit with automation capability; clean, user-friendly interface; compliant with both international and domestic standards.
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Cost-effective: High-reliability vacuum interrupter with extended maintenance intervals; one-stop customization service balancing performance and lifecycle cost.
Technical Parameters
| Item | Unit | RGIS-12 | RGIS-24 | RGIS-40.5 |
|---|---|---|---|---|
| Rated Voltage | kV | 10 | 20 | 35 |
| Maximum Operating Voltage | kV | 12 | 24 | 40.5 |
| Rated Power Frequency Withstand Voltage | kV | 42 | 65 | 95 |
| Rated Lightning Impulse Withstand Voltage | kV | 75 | 125 | 185 |
| Minimum Functional Pressure (Absolute at 20°C) | kPa | 110 | ||
| Rated Frequency | Hz | 50/60 | ||
| Rated Busbar Current | A | up to 2500⁽¹⁾ | ||
| Rated Feeder Current | A | 630/1250/2500⁽¹⁾ | ||
| Rated Peak Withstand Current | kA | 80 | ||
| Rated Short-Time Withstand Current | kA | 31.5 | ||
| Rated Short-Circuit Breaking Current of Circuit Breaker | kA | 31.5 | ||
| Rated Short-Circuit Making Current of Circuit Breaker | kA | 80 | ||
| Rated Operating Sequence | ||||
| Closing Time | ms | 60 ± 5 | ||
| Opening Time | ms | 40±5 | ||
| Insulating Gas | N2 | N2 | SF 6⁽³⁾ | |
| Rated Filling Pressure (Absolute at 20°C) | kPa | 130 | ||
| Minimum Operating Pressure (Absolute at 20°C) | kPa | 120 | ||
| Auxiliary Circuit Voltage | V | |||
| Protection Level⁽⁵⁾ High Voltage / Low Voltage | IP 65 / IP 4X⁽⁵⁾ | |||
| Ambient Temperature Maximum Value / Minimum Value | °C | +40 / -15 | ||
1)Higher values as required by national standards；2)Other sequences can be provided upon customer request；3)Insulating gas: N2, SF6 (sulfur hexafluoride)；4)Other auxiliary voltages can be provided upon customer request；5)Higher levels can be provided upon customer request ；6)Can be adapted to special environments upon customer request
RGIS Cabinet Cross-Sectional View
Conclusion
With four core advantages—compactness, safety, intelligence, and economy—the RGIS Type C-GIS redefines the cost-performance benchmark for medium-voltage GIS equipment, ensuring stable and reliable operation of your power distribution system.
Applications
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Urban rail transit, commercial complexes, hospitals, data centers—critical load distribution
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Industrial parks, mining and industrial MV distribution systems
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Renewable energy plants, energy storage station auxiliary equipment
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Old substation retrofits and space-constrained upgrade projects
Reference Projects for Switchgear
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Rockwill RGIS Case Study and Gas Insulated Switchgear Project in GhanaFocusing on the demand for improved distribution network reliability in Ghana, 11kV R-GIS gas-insulated switchgear is adopted. Integrating advantages of compact design, weather-resistant protection and intelligent management, it adapts to limited installation space and complex tropical local environments. It supports the upgrading of regional power distribution infrastructure and realizes safe, stable, maintenance-free and efficient operation.01 Project Overview1.1 Project BackgroundGhana, as a
Documentation Resource Library Switchgear
FAQ for Switchgear
The high-reliability vacuum interrupter features extended maintenance intervals, reducing downtime and O&M costs. The clean, user-friendly interface simplifies daily operation and monitoring.
Yes. The compact, space-saving design makes the RGIS Type C-GIS an ideal solution for old substation retrofits and space-constrained upgrade projects. Pre-assembled construction minimizes on-site installation time.
Yes. The modular design supports expansion on both sides of the unit. The pre-assembled enclosure enables easy installation and transport, while maintaining flexibility for future capacity expansion.
Yes. The manufacturer offers one-stop customization service, balancing performance and lifecycle cost. Custom options include higher voltage levels, special environments, auxiliary voltages, and special sequences — upon customer request.
