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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Trasformatore di Tipo Secco 10kV - Serie SCBH Lega Amorfica
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Trasformatore di Tipo Secco 20-35KV
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Trasformatore di Tipo Secco in Resina Epossidica Serie SCB 20-35KV
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Trasformatore di Distribuzione Immerso in Olio 20KV
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Trasformatore di Potenza Immerso in Olio 35KV
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Trasformatore di Distribuzione di Potenza Immerso in Olio 6-10KV
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Trasformatore di Corrente –10KV Alta Tensione Interna
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Trasformatore di Corrente–Trasformatore di Corrente Avvolto LMZK 300/5a
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Trasformatore di Corrente–Trasformatore Integrato LSY-10 CT
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trasformatore di corrente–LXK alta tensione sequenza zero
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Trasformatore di Distribuzione di Tipo Secco - 6-10 KV Serie SCB in Resina Epossidica
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Trasformatori Elettrici–JDZ – 10 Tensione di Potenza
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
| Parametro | Specifica |
|---|---|
| Tensione nominale | 12 kV |
| Corrente nominale | 630 A |
| Breaking capacity | 20 kA / 25 kA |
| Gas | SF6 / clean-air options |
| Frequenza | 50/60 Hz |
| Standard | 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.
Che cos'è l'apparecchiatura di manovra isolata in 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.