Features & Highlights:

1.Classic and versatile design with cost performance. It is the best choice for balancing performance and price with mature technology, stable supply chain and affordable pricing.

2. Improved and optimised design, great energy saving: The high-permeability cold-rolled silicon steel core and 45° full-slant joint lamination process are adopted, the no-load loss is reduced by about 30% compared with S11 series, effectively saving the user's electricity cost in the long term.

3. Fully sealed structure for low maintenance and long lifespan: The fully sealed corrugated oil tank design eliminates the need for an oil conservator, isolates air and moisture, delays insulation ageing, and achieves a designed service life of more than 30 years, requiring little daily maintenance.

4. Low-noise operation, suitable for sensitive environments: The optimised core and structure design achieves low operating noise, fully meeting the noise emission standards for densely populated and sensitive environments such as residential areas, schools and hospitals.

5. High reliability, strong short-circuit withstand capability: With the optimised winding structure, high-strength insulation materials and a robust fastening design, the short-circuit withstand capability is extremely strong.

6. Wide adaptability and convenient and flexible installation Various capacity, voltage and frequency parameters can be customised to adapt to various installation methods such as pole-mounted, platform, box-type substation and indoor power distribution room. It is widely used in urban and rural power distribution systems, industrial, commercial and rural power systems.