ABB celebrates 125 years? existence in Switzerland and 100 years of corporate research. The company has been a leader in transformer technology for many decades. The most recent advances are in the area of ultra-HVDC, with power transformers rated at up to 1,100 kV. Over the last 30 years, ABB has made significant technical progress in HVDC cables, with a 525 kV extruded cable system, launched in 2014, that is based on high-quality cross-linked polyethylene (XLPE). The company has also developed a dynamic cable structure for HVDC, especially useful for offshore platforms.