High Voltage Gas Insulated Switchgear Manufacturers – Compact GIS Supply
Subian Electric manufactures high voltage gas insulated switchgear – the XGN15-12 inflatable ring main unit – at our 50,000-square-metre factory in Xuzhou, Jiangsu, China. Our 350+ employees have served utilities in 50+ countries since 2019.
As a factory-direct manufacturer and supplier, we provide gas insulated RMUs with compact footprints, factory pricing and complete test documentation.
Send your network configuration and requirements. Our export team will respond with a quotation and drawings.
Since 2019 · 50,000m² · 350+ Staff
Gas Insulated Ring Main Units We Manufacture
XGN15-12 inflatable gas insulated ring main units for 12 kV loop networks and compact substations – compact, sealed and maintenance-free.
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Transformador de tipo seco de 10kV - serie SCBH Aleación Amorfosa
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Transformador de tipo seco de 20-35KV
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Transformador de tipo seco de resina epóxica serie SCB de 20-35KV
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Transformador de distribución sumergido en aceite de 20KV
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Transformador de Potencia Sumergido en Aceite de 35KV
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Transformador de distribución de potencia sumergido en aceite de 6-10KV
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Transformador de Corriente –10KV Interior Alta Tensión
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Transformador de corriente–Transformador de corriente enrollado LMZK 300/5a
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Transformador de corriente–LSY-10 transformador CT integrado
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transformador de corriente–LXK secuencia cero de alta tensión
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transformador de distribución de tipo seco - serie SCB de resina epóxica de 6-10 KV
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Transformadores eléctricos–JDZ – 10 Voltaje de potencia
What Is High Voltage Gas Insulated Switchgear?
Gas insulated switchgear (GIS) seals the live components in an insulating gas, allowing a much smaller footprint than air-insulated designs. The XGN15-12 RMU is the standard GIS format for distribution.
Gas insulated RMUs suit urban networks, compact substations and indoor installations where space is at a premium and maintenance access is limited.
- Compact footprint – sealed gas insulation saves space.
- Maintenance-free – sealed design reduces service work.
- 12 kV class – standard for distribution RMUs.
- 50,000m² factory – in-house assembly and testing.
- 350+ employees – engineering, quality and export teams.
- OEM / ODM & wholesale – custom branding, packaging and volume supply.
Main Types of Gas Insulated Switchgear
We manufacture two GIS configurations:
Ring main unit
Compact 2-3 function units for loop networks.
Transformer feeder unit
GIS with transformer protection functions.
Gas Insulated Switchgear Specifications
| Parámetro | Specification |
|---|---|
| Voltaje nominal | 12 kV |
| Corriente nominal | 630 A |
| Breaking capacity | 20 kA / 25 kA |
| Gas | SF6 / clean-air options |
| Frecuencia | 50/60 Hz |
| Estándar | IEC 62271 / GB 3906 |
GIS Manufacturing at Our 50,000 m² Factory
From enclosure assembly to gas filling, sealing and testing – every GIS unit is built and tested at our Xuzhou facility.
Production Workshop
Controlled winding, core processing and vacuum drying with quality checkpoints between every stage, so quality is built in from the start.
Quality & Testing Center
Routine inspection on every unit before delivery, with type test reports supporting project approval and market certification.
Materials & Components
Core materials, windings and components are checked against the approved bill of materials on every production run.
OEM / ODM / Agency Supply
Custom branding, packaging and configurations for global partners – from nameplate to complete product design – supported by a dedicated export team.
Gas Insulated Switchgear Factory Price – Request a Quote
OEM/ODM & Wholesale GIS Supply
Utilities and distributors can brand or resell GIS units with custom nameplates and documentation.
OEM / ODM
Factory-Direct
Custom branding, packaging and product variants built on our standard platforms – from a nameplate to full product design.
Custom nameplate · Custom packaging · Full test docs
Wholesale Supply
Volume Pricing
Factory pricing with flexible container quantities, mixed models per container and reliable global shipping for volume buyers and importers.
Container MOQ · Mixed models · Global shipping
Distributor Support
Channel Partners
Dedicated account management, technical documentation and priority production for distributors and project clients.
Account manager · Sales material · Priority lead times
Gas Insulated vs Air Insulated Switchgear
Gas insulated switchgear is far more compact and virtually maintenance-free, at higher cost; air insulated designs are cheaper but need much more space and regular maintenance.
For urban and indoor sites, the space saving of GIS usually justifies the cost.
Choosing a Gas Insulated Switchgear Manufacturer
Verify pressure sealing, type test evidence and gas handling compliance – the factors that define GIS reliability.
Subian Electric offers a 50,000m² factory, 350+ employees, ISO9001, CE and UL certification and export to 50+ countries.
Send your network configuration – we will respond with a quotation and drawings.
Certifications & Quality Assurance
Our gas insulated switchgear is produced under ISO9001, ISO14001 and ISO45001 management systems, with CE and UL certification and type test reports.
Product Certifications
Gas Insulated Switchgear FAQ
Answers to the questions buyers ask most about gas insulated switchgear.
¿Qué es el equipo de conmutación aislado por gas?
What is the XGN15-12?
Why choose GIS over air-insulated switchgear?
What gas is used?
Do you provide type test reports?
What is the minimum order quantity?
Contact Subian
Need the Right Specification?
Tell us your target market, product type, quantity and technical requirements. Our team will help you identify a suitable configuration for your project.