An injection molding press for our Chemistry & Materials test platform

2018-07-13T14:33:52+00:00 July 13th, 2018|High Voltage Substation Equipment, HVDC Cable Systems|

With a new semi-automatic injection mixer and an injection molding press, the material characterization and the processing of our samples will take less time – close to industrial production thanks to the Automatic Pressure Gelation (APG) method.

Testing phase after installation of SuperGrid Institute’s hyperbaric vessel

2018-07-09T11:27:52+00:00 June 28th, 2018|High Voltage Substation Equipment, HVDC Cable Systems|

Our 10 tones, six meters long, hyperbaric vessel has been installed at our premises and is now going through final tests before commercial use.

A novel hyperbaric vessel for SuperGrid Institute

2018-07-09T11:28:18+00:00 January 29th, 2018|High Voltage Substation Equipment, HVDC Cable Systems|

Since 2016, SuperGrid Institute’s program 4 has intensely worked on the specification of a test platform with the capability to go up to 40bars of internal pressure and validate subsea node, a SuperGrid Institute concept for offshore meshed networks. Beside its imposing size, the particularity of this platform is that it allows combined testing functions on subsea high-voltage cable systems including water pressure, di

EPF 2017 “Influence of size distribution […] high voltage epoxy insulators”

2018-07-09T11:15:46+00:00 August 23rd, 2017|HVDC Cable Systems, Publications|

Epoxy resins crosslinked with acid anhydride hardeners are widely used in high voltage insulation. They have excellent dielectric, electrical and mechanical properties up to relatively high temperatures. However, neat epoxy systems exhibit low thermal conductivity and unsuitable coefficient of thermal expansion (CTE) when used with metallic materials such as high voltage conductors.

PhD Justine BILLORE “Thermal aging of XLPE for HVDC cables”

2018-07-09T11:14:34+00:00 July 21st, 2017|HVDC Cable Systems, Phd|

To connect the different points of the network, the transmission and distribution of electric power used cables. Since few years, cables and especially their insulation part are evolving, going from paper insulation to a synthetic insulation. Nowadays, the insulation part of HVDC cables is in crosslinked polyethylene or XLPE.

Toward deeper submarine cable installations

2018-07-09T10:23:50+00:00 February 16th, 2017|HVDC Cable Systems|

Numerous High Voltage Direct Current (HVDC) submarine cables have been installed in Europe and more are yet to come. Such transmission allows the trading of energy or the supply of isolated areas with almost no limitations on distance (typically 100-1000km). Interconnections such as NorNed and soon Nord Link and North Sea Link will provide a safe path for the large integration of renewable energies in northern Europe (Figure 1).