Gas Insulated Switchgear
Gas Insulated Switchgear
As a professional gas insulated switchgear manufacturer, Juhongkai offers a broad portfolio of GIS: SF6, SF6‑free, metal‑enclosed models, all built to high safety & environmental standards. OEM/ODM customization available worldwide.
| Product Model | Product Type | Core Parameters | Application |
|---|---|---|---|
| JSR6-72.5kV | SF6 Gas-Insulated Switchgear | 1250A rated current, 31.5kA breaking current | High-voltage power grids, large industrial parks |
| GSR6-27.5kV | SF6-Free Gas-Insulated Switchgear (C-GIS) | Eco-friendly (no SF6), compact design | Urban power distribution, green energy projects |
| GSR6-12/24/40.5kV | Environmental Gas-Insulated Switchgear (C-GIS) | Multiple voltage options, low maintenance | Commercial buildings, new energy stations (solar/wind) |
| JSR6-12/24/40.5kV | SF6 Gas-Insulated Switchgear (C-GIS) | High reliability, long service life | Subway power supply, industrial heavy load scenarios |
1. Industry-Leading GIS R&D Capability
The first domestic enterprise to complete R&D, network access testing, and batch supply of *standardized & customized GIS* (SF6-insulated, SF6-free, environmentally friendly). Covering 12kV/24kV/40.5kV/72.5kV, meeting medium-high voltage power grid demands.
2. CNAS-Accredited In-House Lab
Lab certified by CNAS (China National Accreditation Service for Conformity Assessment) – conducts full GIS performance tests: SF6 gas leakage rate test (<0.1%/year), insulation strength test, mechanical operation life test (≥10,000 times), and extreme temperature resistance test (-30℃~+50℃).
3. Smart Manufacturing & Quality Control
Equipped with a "smart quality control brain" and automated production lines, monitoring the entire GIS manufacturing process (from copper bar processing to gas chamber sealing) to ensure consistent batch quality.
4. Mature Batch Supply Capacity
Stable supply chain for GIS core components (circuit breakers, disconnectors, sensors), supporting urgent project timelines (e.g., 30-day delivery for 12kV/24kV GIS batches).
Urban power distribution networks in major cities — supplied dozens of metal‑enclosed GIS units
Wind & solar farms — environmentally friendly GIS units in harsh outdoor conditions
Rail & metro substations — SF6 sealed GIS with compact layout
Eco‑friendly options: SF6 alternatives & sealed gas systems
Full metal enclosure: high safety, protection from environmental factors
Customized solutions: OEM/ODM design flexibility
Global standards: CE / IEC compliance and thorough testing
After‑sales & support: spare parts, technical support, quick responses
Q:What is the difference between SF6 gas insulated switchgear and SF6‑free GIS?
A:SF6‑free GIS uses environmentally friendly gases such as dry air or fluoronitrile mixtures that deliver similar insulation performance while significantly reducing greenhouse impact.
Q:How do you ensure insulation performance and safety in metal‑enclosed GIS?
A:Each GIS undergoes dielectric, mechanical, and partial discharge testing under IEC standards to ensure long‑term insulation reliability and operational safety.
Need Gas Insulated Switchgear? Contact Us Directly!
"There is always a ring main unit suitable for you!" Juhonkia continues to introduce new products in the field of ring main units. The ring main unit series products achieve full coverage of voltage levels and different insulation media products. It is the first domestic enterprise to simultaneously complete the R&D, manufacturing, network access testing and batch supply of standardized and customized SF6 gas insulation, solid insulation, environmentally friendly gas insulation, atmospheric air insulated ring main switchgear primary and secondary integrated ring main switchgear.
Hangzhou Metro
Wind power
