Dielectric behaviour of an epoxy network cured with a phosphonium-based ionic liquid
Dielectric behaviour of an epoxy network cured with a phosphonium-based ionic liquid [...]
Dielectric behaviour of an epoxy network cured with a phosphonium-based ionic liquid [...]
High Power Impulse Magnetron Sputtering becames nowadays a very versatile way to taylor the film properties & better control the growth of the thin fims.
Understanding of PD phenomena is mandatory to evaluate the performance of PD measurement systems in function of gas composition.
Understanding of PD phenomena is mandatory to evaluate the performance of PD measurement systems in function of gas composition.
One of the suggested solutions is the fluoronitrile (C4F7N), a gas having alone a dielectric withstand 2.7 times higher than SF6.
With the FastGrid project completion date just a few months away, find out more about the ins and outs of the project in this video filmed at our premises.
Using Gibbs free energy method, a theoretical study has been conducted on SF6 replacement candidates listed above.
This paper aims at the detection and characterization of partial discharges (PD) in GIS under HVDC constraints in the presence of a protrusion/metallic particle on the high voltage conductor.
Recent studies have demonstrated that fluoronitrile (FN) NovecTM 4710 and fluoroketone (FK) NovecTM 5110 show higher dielectric strength than SF6. These gases can be mixed with a buffer gas such as CO2 and technical air to have suitable dielectric properties for high voltage insulation applications.
In the framework of the research activities of the High Voltage Substation Equipment program of SuperGrid, it has been proposed to introduce such species by means of an evaporative liquid spray. The interaction between injected droplets and the mixture of hot gases successively flowing into the chamber and vented outside the chamber during the mechanical separation of the electric contacts should allow spray evaporation and transport of the modified gas mixture towards the arc region.