Driven by the need for increased efficiency, transmission grid voltages have been pushed to ultra-high voltages (UHV), beyond 1000 kV. This project will realise metrology solutions for grid component testing and condition monitoring required for successful implementation of future UHV transmission grids.

Specifically, the project will create critical metrology infrastructure in four areas: reliable and traceable lightning impulse measurements above 2500 kV; extended traceability of UHVDC up to 1600 kV; improved HVAC traceability via linearity determination of HV capacitors up to 800 kV; development of partial discharge measurement techniques in support of equipment testing under HVDC stress.

Project duration: June 2020 – May 2023