K4.3/D9021-A4 is a medium voltage, oil-immersed distribution transformer manufactured by Kraftberg, a leading European manufacturer of industrial and power products. It is a three-phase transformer with a power rating of up to 22,000 kVA. The transformer is constructed from high quality materials and components, such as corrugated tanks and mineral oils, according to EN 60076. It is designed to be efficient and reliable with a low no-load loss and a high efficiency at full load. Other features include a low partial discharge, temperature rise, high voltage tap-changer and multi-function protection. The transformer comes with a variety of certifications, such as CE, KEMA, GOST and TEM.