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Switchgear & Transformer Manufacturer

Switchgear & Transformer Manufacturer


Years of Manufacturing Heritage

8280
+

Countries With Active Projects

8185,808080
+

Authorized Technical Patents

8680
+

Factory Testing Pass Rate

82
+

STELLAR builds switchgear and power transformers at our China facility for utilities, contractors, and distributors in 50+ countries.

Send us your single-line diagram — we configure, assemble, test, and ship ready for commissioning.

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our products

Switchgear & Transformer Manufacturer

why choose us

Core Advantages

End-to-end electrical infrastructure engineering. We manufacture customized switchgear and transformers matched precisely to your single-line diagrams, supported by in-house testing and global field commissioning.

Solutions by Industry

Utilities & Grid

Metal clad switchgear, SF6 ring main units, and oil immersed transformers supplied as turnkey substation packages. Designed to grid operator specs, tested to IEC 62271.

Customer Value

Customer Value

One Source, Less Project Risk

Fragmented sourcing causes most project delays — switchgear from one vendor, transformers from another, panels from a third. STELLAR supplies the full electrical package from one production base. One engineering team, one QC process, one logistics chain, one point of accountability.

Trusted by Industry Leaders Worldwide

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Manufacturing

Production Capacity for
Project-Scale Delivery

Our facility covers switchgear assembly, transformer winding and core stacking, insulation treatment, and a full electrical testing center. Standard configurations ship within 30 days. Complex custom builds complete in 45–60 days.
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Production Capacity for
Project-Scale Delivery

FAQs

What products do you manufacture?

We build medium and low voltage switchgear, power and distribution transformers, and compact substations. The MV switchgear range covers metal-clad, gas-insulated (GIS), air-insulated, vacuum, and ring main units; the LV range covers GGD, GCK, GCS, and MNS panels. Transformers span oil-immersed (S11/S13/S20), dry-type cast-resin (SCB), and amorphous-core units up to 2500 kVA and 35 kV. We also supply European and American type compact substations that combine all three in one enclosure.

Can you supply the switchgear and the transformer for a project together?

Yes, and it is a core reason buyers come to us. Because the MV switchgear, LV switchgear, and transformers are built on one production base, the complete package shares one engineering team, one quality process, and one shipment. That removes the interface and responsibility gaps that come from sourcing each part from a different vendor, and the equipment arrives coordinated and tested to work together.

Can you build to our single-line diagram and specifications?

Every order is configured from your single-line diagram. We set the voltage class, rated current, fault level, vector group, tap range, protection scheme, and enclosure rating to your requirement, and we build to the standard your project or consultant specifies. Send us the drawing and the ratings, and we engineer the equipment to match.

What standards do you build to, and which component brands do you use?

The switchgear is built to IEC 62271 and the equivalent GB standards, the LV assemblies to IEC 61439, and the transformers to IEC 60076. For the breakers, relays, and other devices inside the switchgear, we fit components from the brand your project approves, including ABB, Siemens, and Schneider, as well as proven domestic equivalents where budget leads.

Do you export, and can you build to local utility specifications?

We supply equipment to projects in more than 50 countries and build to international and local utility standards, including specifications such as TNB (Malaysia) and SANS (South Africa) where a project requires them. Routine and type-test reports are provided with each unit so it can be approved for connection to the local network.