S20 Oil Immersed Transformer

The S20 Oil Immersed Transformer is a high efficiency power distribution transformer engineered for ultra low loss and dependable operation in utility and industrial environments. Built with high quality copper windings and an excellent iron core, it delivers fast response, stable output, and energy saving performance. The radiator type tank design provides strong heat dissipation for long term full load service, while robust construction ensures strong environmental adaptability and high reliability for outdoor substations and harsh sites. Rated capacity typically covers 800 kVA to 10000 kVA, with configurable connection groups (e.g., Yyn0 or Dyn11). Voltage ratings are customizable to match system requirements, with common primary/secondary options including 4.16 kV, 12.47 kV, 13.2 kV, 13.8 kV, 24.94 kV, 34.5 kV and more; secondary outputs can be configured for distribution levels such as 208/120 V, 480/277 V, 600 V, or other project specific voltages. Standard external interfaces include high voltage terminals, low voltage terminals, and practical oil monitoring elements such as an oil level display/tubular oil level gauge and oil level indicator—supporting safer operation and easier maintenance. It is widely applied in grid distribution, industrial and mining power supply, new energy power stations, and public facilities.

Key Features

• S20 Ultra Low Loss Design: Energy saving core structure and optimized winding design help reduce operating cost and improve overall efficiency.
• Oil Immersed Cooling: Radiator tank provides strong heat dissipation, suitable for long term continuous full load operation.
• High Reliability Hardware: Durable bushings/terminals and stable insulation system support dependable service in demanding conditions.
• Wide Capacity Range: Typical ratings from 800–10000 kVA for distribution and power supply applications.
• Flexible Voltage Configuration: Custom HV/LV ratings and connection groups (e.g., Yyn0, Dyn11) for easy system matching.
• Operation Monitoring: Oil level display, tubular oil level gauge, and oil level indicator help simplify inspection and maintenance.
• Broad Applications: Ideal for grid distribution, mining/industrial supply, renewable energy stations, and public infrastructure.