ABOUT RUIBIAN

Transformer engineering for critical power applications.

We design and manufacture transformers for the networks, buildings and industries that depend on them. See how our transformers are built, from winding and assembly to testing.

Inside our factory Get in touch

RUIBIAN TRANSFORMER

From distribution rooms to grid substations.

Ruibian (Jiangsu) Electric Power Co., Ltd. supplies dry-type and oil-immersed transformers, pad-mounted transformers and compact substations. Our work spans utility networks, renewable energy, data centers and industrial power.

Some customers arrive with a detailed equipment schedule. Others bring an existing nameplate or the outline of a new facility. Both are a starting point for turning an electrical requirement into a transformer design.

120,000 m²Production area

20,000 MVAAnnual capacity

80+Countries delivered

Cast-resin transformer during final assembly in the workshop — Final assembly of a cast-resin transformer.

INSIDE THE WORKSHOP

Before it becomes a finished transformer.

The winding, insulation and assembly stages are less visible than the finished tank or enclosure. They are also where much of the work takes place.

Take a closer look

Horizontal winding machine in the transformer manufacturing workshop — Horizontal winding equipment. Coil construction follows the electrical and mechanical design.

Different designs take different routes.

A cast-resin coil goes through moulding and vacuum casting. An oil-immersed transformer takes a different route through insulation drying, tank assembly and oil processing.

The factory gallery shows these operations and the equipment used at each stage, rather than just the finished product.

Vapour-phase drying equipment for transformer insulation — Vapour-phase drying equipment.

TESTING & QUALITY

Testing is part of the build.

Electrical tests measure how the transformer performs against its design and the agreed requirements. The test programme and reports belong with the equipment documentation.

Our quality and certificate pages let you look beyond a badge: see the test facilities, read the documents and check the models and ratings they cover.

Quality & test facilities Certificates & their scope Published project references