C-GIS Gas Insulated Switch Gear
✅Lower cost & higher cost-effectiveness
✅Eco-friendly pure air insulation
✅Easy Inspection & Low Maintenance
✅Higher Operational Safety and Fault Tolerance
✅Intelligent Monitoring System
✅Compact Design
✅Mature Structure & Extended Service Life
✅Flexible Expansion & Retrofit Compatibility
- Product Introduction
Jinneng C-GIS Gas Insulated Switchgear features a fully sealed design that encloses all high-voltage live components in a stainless steel gas chamber with eco-friendly insulating gas(dry air). Serving medium-voltage distribution systems, mainly 12kv and 24kv ,it combines switching control, circuit protection, electrical isolation and energy metering, delivering superior operational reliability even in limited installation spaces and harsh industrial environments.
Function
Power Distribution Control and Switching:Integrated with circuit breakers,load switches, disconnectors and earthing switches, this unit enables power feeding and cut-off of lines and transformers, load switching and fault tripping, while completing the switch of distribution circuits.
Fault Protection:Equipped with built-in overcurrent, instantaneous trip, zero-sequence and overvoltage protection, it promptly isolates short-circuit, overload and earth faults to avoid fault escalation and protect equipment as well as personnel safety.
Isolation & Safety Earthing:Fitted with a three-position switch (Isolation / Earthing / Closing), it provides reliable high-voltage isolation and safe earthing during maintenance, effectively ensuring operational and maintenance safety.
Measurement & Monitoring:It supports integration with PT, CT, live indicator devices,as well as gas pressure, temperature and humidity monitoring modules. It enables energy metering, operation monitoring and fault warning, fully adaptable to distribution automation systems.
Fully Insulated & Sealed Protection:The sealed gas tank isolates moisture, condensation, dust, salt spray, animals and corrosive gases. Free from harsh ambient conditions, it significantly enhances power supply reliability and reduces maintenance workload.
Core Traits
● Eco-friendly Insulation Solution:Adopts zero-GWP and low-GWP mixed insulation gases, eliminating ozone depletion risks and long-term environmental hazards caused by traditional SF₆ gas.
● Fully Sealed Structure:Features a fully insulated, totally enclosed design with multi-layer compartment sealing. It delivers superior resistance to moisture, dust and corrosion, ensuring stable operation in harsh working conditions.
●Intelligent Monitoring System:It integrates online gas pressure monitoring, partial discharge detection and temperature sensing, enabling real-time equipment status feedback and improve operational efficiency.
● Compact Design:Adopting a modular structure, it reduces the overall volume by 30% compared with conventional switchgear, perfectly suitable for space-limited distribution sites. Customization is available upon request.
●Five-protection Interlock:Fitted with dual mechanical and electrical interlock devices to prevent maloperation, effectively protecting personnel and equipment safety.
Internal Structure Diagram

Technical Parameters

The above parameters are typical values. Final technical specifications shall prevail. For more information, please feel free to contact us.
Products Description
Lower cost & higher cost-effectiveness:It adopts a universal structure with readily available components and spare parts, delivering significant advantages in procurement and retrofitting costs.
Eco-friendly pure air insulation:Adopts ambient dry air for insulation with no SF₆ greenhouse gas. It eliminates gas leakage and recycling risks, reduces environmental compliance burdens .
Easy Inspection & Low Maintenance:The open layout enables full visibility and easy access to breakers, disconnectors, earthing switches and busbars. It allows intuitive troubleshooting, inspection and parts replacement.
Higher Operational Safety and Fault Tolerance:Free from gas pressure monitoring concerns, air tank seal aging and leakage, as well as explosion risks. It avoids toxic substances decomposed from SF₆ gas, greatly improving personal safety for on-site operation and maintenance.
Mature Structure & Extended Service Life:Proven mature designs such as KYN28 and XGN have been widely applied for decades. Free from sealing rubber aging and gas attenuation, it maintains a low failure rate for long-term operation.
Flexible Expansion & Retrofit Compatibility:Featuring an open internal layout, the unit enables convenient feeder expansion, secondary circuit modification, and retrofitting of additional protection and metering devices. It serves as an ideal solution for substation upgrades and industrial plant renovation projects.
Package and Transportation
- Pre-delivery Inspection:All product components are strictly inspected before factory dispatch, to ensure normal use and smooth on-site installation.
- Packaging Standard:Goods are packaged with cartons, pallets or wooden frames. Packaging is tailored to product size and fragility, so as to secure safe transportation.
- Transportation Options:Sea freight is adopted as the primary shipping method. Land, railway, air freight and international express are also available as alternative solutions.
- Custom Shipping Marks:Shipping marks can be provided as required. Custom printed markings are available for bulk orders.
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