This product conforms to the national standards IEC 60076 series and IEC 61558 for transformer technical parameters and requirements. The S13-S22 series transformers are a new series of low-loss copper winding products. These products use high-quality materials and employ new processes and materials in the coil body and insulation, thereby significantly reducing no-load and load losses and making their performance and structure more reliable and superior.

Features of S13~S22 series 6 kV~35 kV low-loss no-excitation voltage regulating transformers :

The S13~S22 series products offer good economic performance. Compared with the S11 series, the no-load loss is reduced by an average of 30%, and the no-load current is reduced by 70%-85% compared with the S11 series.

The transformer oil tank adopts a fully sealed structure. The tank and its edge can be connected by bolts or welded together, preventing the transformer oil from contacting the air and extending its service life.

Improvements were made to the components related to the oil tank seal, increasing reliability and enhancing the manufacturing process to ensure the reliability of the seal.

The S13-M and S22-M series transformer oil tanks use corrugated plate radiators. When the oil temperature changes, the corrugated plates expand and contract with heat, which can replace the function of the oil conservator. The corrugated plate oil tanks are aesthetically pleasing and occupy a small area.