An Oil Immersed Distribution Transformer is used in medium voltage power distribution systems to convert voltage levels and provide reliable electricity supply.
The S Series is commonly applied in utility networks, industrial facilities, infrastructure projects, and renewable energy systems.

Oil Immersed Transformers use insulating oil for insulation and heat dissipation, making them suitable for outdoor distribution networks, utilities, and industrial applications.
Dry Type Transformers do not contain insulating oil and are commonly selected for indoor applications with higher fire safety requirements.
The selection depends on installation environment, safety requirements, maintenance conditions, and lifecycle cost.

ONAN uses natural oil circulation and natural air cooling.
ONAF adds forced air cooling through fans to improve heat dissipation capability.
The suitable cooling method depends on transformer capacity, thermal design, ambient temperature, and operating conditions.

Yes.
As an Oil Immersed Distribution Transformer Manufacturer, Jiangsu Xinxin Electric provides OEM and ODM solutions including:
Electrical parameter customization
Structural design
Accessory configuration
Environmental adaptation
Branding and technical documentation