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Rsafele Electric Strengthens South American Footprint with Peruvian Partner IMG Equipamientos Date: November 17, 2025 | Location: Zhejiang, China On November 17, 2025, a high-level delegation from ...

February 27, 2024 – Zhejiang Rsafele Electric Co., Ltd. (Rsafele) achieved a major milestone in its international expansion. A joint inspection team from Dhaka Power Distribution Company (DPD...

On May 27, 2025, owner representatives and technical specialists from Kazakhstan GPP Project under Changzhou Sieyuan Toshiba Transformer Co., Ltd visited our manufacturing base to complete factory ...

In operation, the heat from the windings and core of an oil-immersed power transformer is first transferred to the oil, and then through the oil to the cooling medium.

Transformer oil is a petroleum-based liquid, potentially flammable, and has environmental drawbacks.

Pure copper, as a material with high conductivity, has excellent electrical and thermal conductivity, making it ideal for high-power transformers.

Dry-type transformers use flame-retardant insulation materials.

Dry-type transformers, unlike traditional oil-immersed transformers, are unique in that their core and windings are not immersed in insulating oil, but rather cooled by air convection.

Made of high-permeability silicon steel sheets laminated together, used to conduct magnetic flux and reduce eddy current losses.

With the widespread application of dry-type transformers, their manufacturing technology has also made significant progress.

Prevent operation in environments with corrosive liquids, gases, dust, conductive fibers, or metal shavings;

It generally uses either air self-cooling or air cooling.