Oil Immersed Transformers

Henan GNEE Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of oil immersed transformers in China. If you're going to buy customized oil immersed transformers made in China, welcome to get quotation from our factory. Quality products and reasonable price are available.

Oil-immersed transformers are a common type of power transformer. They use insulating oil to cool and insulate the internal components of the transformer.

Oil-immersed transformers consist of two or more coils (primary and secondary windings) and an iron core. These coils and the core are submerged in insulating oil to maintain their cooling and insulating properties.

Insulating oil plays a crucial role in oil-immersed transformers. It not only effectively cools the internal components but also provides insulation protection against arcing and discharge. Additionally, the insulating oil has excellent electrical insulation performance and stability, allowing it to operate reliably for extended periods in high-temperature environments.

three phase oil immersed transformer feature

1. The iron core is made from high-quality silicon steel sheet, offering high performance and magnetic conductivity with low no-load loss.
2. The high-voltage winding adopts a layered structure. For low-voltage windings, transformers rated at 500 kVA and below use a layered type, while those rated at 630 kVA and above use a new spiral type. These designs ensure high mechanical strength, balanced ampere-turn distribution, and strong short-circuit resistance.
3. A positioning structure is added to the body to prevent displacement during transportation. Additionally, all fasteners are equipped with locking nuts to ensure that they remain secure during long-term operation.
4. This product features a fully sealed structure. The vacuum oil-filling process is used during packaging to completely remove moisture from the transformer, ensure that the transformer oil is isolated from the outside air, prevent oil aging, and improve operational reliability. The product is equipped with a pressure relief valve, signal thermometer, and gas relay to ensure safe operation.
5. The transformer uses a corrugated oil tank, which offers advantages such as simple processing, high mechanical strength, effective welding, and no leakage. The strong fluidity of the oil also enhances the product's heat dissipation capacity.
6. The product is aesthetically pleasing, compact, and occupies a small floor area, making it an ideal maintenance-free solution.

GNEE Electrical Group Co., Ltd. is a technology-based enterprise specializing in the research and development, production, sales and service of dry-type transformers, power transformers, high and low voltage switchgear and related products. Our factory can provide a full range of distribution transformers.

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