Performance investigation of SF6 free Gas Insulated DC Systems
A solution to replace SF6 in high voltage equipment is the mixture of Fluoronitrile C4F7N with CO2 and O2.
SuperGrid Institute, a major partner in the OPHELIA project
In the OPHELIA project, SuperGrid Institute will be responsible for supplying DC solid state transformer for the demonstrator.
Analysis of corona and surface discharge signals from different non-intrusive sensors
This work investigates the efficiency of different non-intrusive sensors for partial discharge measurement in MVDC or HVDC equipment.
Electrical Breakdown in Gaseous Nitrogen at Cryogenic Temperature with a Heated Tape Electrode
With the objective to better understand and design the electrical insulation of resistive superconducting fault current limiters...
Methods for Partial Discharge Calibration in Gas-Insulated Substations for HVDC Power Grids and Charge Evaluation Uncertainty
This paper shows a Partial Discharge calibration method for very-high frequency magnetic and electric sensors in GIS.
New magnetic sensor for partial discharges measurement applied to HVDC constraints inside GIS
The aims of this work were to study its behaviour and to compare its performances with other measuring methods.
SuperGrid Institute, RTE and MasterGrid signed a promising partnership agreement for the decarbonisation of the electricity industry!
A partnership agreement to find an alternative to the use of SF6 gas (most potent greenhouse gas) in existing electrical installations.
DC time constant evaluation for HVDC GIS cable accessories
This paper presents its evaluation through simulations in a cable GIS termination under different conditions.
Characterization and modelling of interface between Epoxy Resin materials and different gases for HVDC GIS cable termination development
GIS cable terminations present a complexity of geometry and material assembly that makes their design challenging.
DC time constant evaluation for HVDC gas insulated system cable connection assemblies
DC time constants in different parts are computed and presented in this paper for a cable GIS fluid filled connection assembly.
