The company said the extruded HVDC cable system will make renewable energy installations more efficient and cost-effective.
The technology, which includes high-voltage power cables, joints and terminations, will double the power capacity of cable connections to around 2.6GW from 1GW.
It will extend the reach of lines to 1,500km from less than 1,000km with transmission losses of just below 5%.
The new cable system provides a 64% increase over 320kV lines, currently the highest voltage deployed.
The technology, which uses a new polyethylene insulation material, will allow countries and utilities to integrate more renewable energy being generated by distant solar and wind installations.
The company claims that one pair of 525 kV extruded HVDC cables could transmit enough power from giant offshore wind farms for about two million households.
ABB CEO Ulrich Spiesshofer said: "This major technology breakthrough will change the feasibility of renewable energy projects and play a defining role in using underground and subsea high voltage cables to integrate renewables over long distances."
The company said it will present the system at the Cigré technology symposium in Paris, France, this month.
ABB has commissioned over 25 DC cable connections and about 100 AC cable links globally.
Image: ABB’s 525kV high-voltage direct current cable system. Photo: Courtesy of ABB.