We are proud to be revealing our 525kV DC circuit breaker at the IEEE Power & Energy Society General Meeting.
The aim of this paper is to investigate the partial discharge signals recorded with both conventional and UHF methods in DC voltage.
Simulation methodology for HVDC cable accessories: focus on oscillating polarity reversal and fast transient overvoltages
The aim of this paper is to propose a time decoupled simulation method to compute the electric field in case of OPR and S/IMP without losing in result accuracy.
Dielectric testing of gas insulated HVDC systems: CIGRE Technical Brochure 842 published with SuperGrid Institute’s input
Thanks to our recognised expertise in this field, we were involved in producing the CIGRE Technical Brochure 842 “Dielectric testing of gas insulated HVDC systems”.
Numerical simulation of partial discharge current pulse: Comparison between SF6, Fluoronitrile – CO2 mixture and Fluoroketone – CO2 mixture
Understanding of PD phenomena is mandatory to evaluate the performance of PD measurement systems in function of gas composition.
They carried out a subcooling protocol that demonstrated the cryostat’s capacity to cool liquid nitrogen from 77 K to 66 K.
PhD Antoine PEREZ “Study of arc development mechanisms over solid insulators surface in CO2/fluoronitrile gas mixtures”
One of the suggested solutions is the fluoronitrile (C4F7N), a gas having alone a dielectric withstand 2.7 times higher than SF6.
[VIDEO] SuperGrid Institute demonstrated the partial discharge behaviour of SF6 substitute gases which can be used in future HVDC GIS.
We have been studying the partial discharge characteristics observed within different gases on our dedicated test platform.