Oil-immersed Transformer

The oil-immersed transformer is fully oil-filled and hermetically sealed. Its core is made of high-quality cold-rolled grain-oriented silicon steel sheets with 45° full miter joints, delivering excellent performance in low noise and low loss. The windings are wound with high-quality magnet wires and subjected to vacuum drying treatment, featuring low loss, reliable insulation, robust structure, and strong short-circuit withstand capability. Equipped without an oil conservator, this transformer has a lower height than non-hermetic types. Adopting a vacuum oil-filling process, it completely isolates the transformer oil from air, effectively preventing insulation degradation caused by oil aging and greatly extending the service life of the transformer. All fasteners of the transformer are fitted with self-locking locknuts, enabling the unit to withstand vibration and jolts during long-distance transportation without the need for core lifting inspection prior to operation. The transformer tank is welded with corrugated fins or expansion-type heat sink assemblies. The transformer is fitted with a pressure relief valve, a temperature measuring device, and other components to ensure reliable operation.