S11-M oil immersed transformer

When reliability and durability are paramount in demanding electrical distribution applications, the choice of transformer is critical. Our S11-M oil immersed transformer is engineered to deliver exceptional performance in such environments. This transformer belongs to the advanced class of fully sealed oil immersed transformers, a design philosophy that eliminates contact between the insulating oil and atmospheric oxygen. This hermetic sealing is the cornerstone of a fully sealed transformer, ensuring long-term operational stability by preventing oil degradation and moisture ingress, which are primary causes of insulation aging and failure. The S11-M design prioritizes safety, efficiency, and minimal maintenance, making it an ideal solution for utilities, industrial complexes, and commercial facilities seeking a robust and dependable power distribution asset.

The S11-M oil immersed transformer incorporates a range of sophisticated design features and high-quality materials to achieve its superior specifications. Its core is constructed from high-grade, grain-oriented silicon steel laminations, meticulously wound and clamped to minimize no-load losses and reduce audible sound levels. The low-voltage windings are made from copper or aluminum foil, while the high-voltage windings use continuously transposed copper conductors, ensuring excellent mechanical strength and short-circuit withstand capability. The entire active part is housed within a robust, corrugated tank that provides both mechanical protection and a significant increase in heat dissipation surface area, eliminating the need for external radiators in many configurations. The S11-M oil immersed transformer is filled with high-performance, inhibited mineral oil that provides superior insulation and cooling properties. This combination of advanced materials and meticulous engineering results in a transformer that meets stringent international efficiency standards, notably surpassing the requirements of older S9 designs.

Key Technical Parameters & Features

• High Efficiency & Low Losses: Significant reduction in no-load and load losses compared to S9 series, leading to substantial energy savings over the transformer's lifetime.
• Fully Sealed Design: Hermetically sealed tank prevents oil oxidation and moisture absorption, ensuring maintenance-free operation and extended service life.
• Robust Construction: Corrugated aluminum or steel tank wall provides excellent heat dissipation and mechanical resilience without external radiators.
• Enhanced Safety: Equipped with a pressure relief device, thermometer, and liquid level indicator for reliable operation monitoring and protection.
• Reduced Noise Emission: Optimized core design and construction techniques result in lower sound power levels, ideal for noise-sensitive environments.
• Environmental Resilience: Suitable for outdoor installation in diverse climatic conditions, from arid to humid coastal areas.

Standards Compliance: Designed and manufactured in accordance with IEC 60076, IEEE C57.12.00, and other relevant national and international standards.

Optional Accessories: Available with various bushing types, protective coatings, wheel kits, and higher temperature rise designs upon request.