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RGIS Type C-GIS switchgear for old substation retrofits 12kV-40.5kV

  • 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

  • Compact and space-saving: Modular design optimizes floor space utilization; pre-assembled enclosure for easy installation and transport; supports expansion on both sides.

  • 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.

  • 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.

  • 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 

RGIS Type C-GIS Switchgear RGIS Cabinet Cross-Sectional View 

RGIS Type C-GIS Switchgear RGIS Type C-GIS Switchgear 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

  • Urban rail transit, commercial complexes, hospitals, data centers—critical load distribution

  • Industrial parks, mining and industrial MV distribution systems

  • Renewable energy plants, energy storage station auxiliary equipment

  • Old substation retrofits and space-constrained upgrade projects

Case Studies - Switchgear

  • Rockwill RGIS Case Study and Gas Insulated Switchgear Project in Ghana
    Focusing 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

Public.
Rockwill Electric Group Profile Rockwill Electric Group Profile
Brochure
English
Restricted
RGIS type C-GIS switchgear RGIS type C-GIS switchgear
Catalogue
English
PDF

Frequently asked questions

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.

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 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.

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.

Know your supplier

Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 108000m² Total staff: 700+ Highest Annual Export(usD): 150000000
Services
Business Type: Design/Manufacture/Sales
Main Categories: Medium and High Voltage Switchgear/Power and Distribution Transformers/Instrument Transformers and Sensors/Lightning Protection and Electrical Insulation/Substations and E-Houses/Electrical Panel and Controlgear
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