Prysmian Group has announced the successful development and testing of its new 700 kV MI-PPL (Mass Impregnated) and 600 kV extruded (XLPE) cable systems for high voltage direct current (HVDC) applications.
“It is the first time in the cable industry that voltages at these high levels have been achieved,” said Massimo Battaini, Senior Vice President Energy Projects at Prysmian Group.
“These are also the first developments in cable technology that enable HVDC power transmission systems beyond 3 GW per cable bipole, and as such, are capable of more than double the power transmission capability of DC cable systems currently in service.”
The voltage upgrades allow an increase in the power transmission capability by up to 15% beyond the previously highest voltage 525 kV XLPE technology and beyond that currently achieved with high performance PPL technology at voltage level of 600 kV, respectively.
These milestone achievements follow Prysmian’s recent announcement of the successful testing of the 525 kV DC XLPE and 525 kV P-Laser cable solutions in December 2015 and March 2016, respectively.
HVDC cable links are key components in delivering sustainable energy systems for the bulk transmission of electrical power over long distances, whether across or between countries.