research will support the metrology needed for the standardization of Ultra High Voltage (UHV)
transmission measurement techniques. The work will further provide guidance for
high voltage metrology in medical electrical equipment. Medical industry needs traceable
methods for DC pulse measurements, in this case applied to x-ray acceleration
voltage measurements. Medical instrument manufacturers are asking for improved
standardization in this field, and medical staff and patients need more
accurate x-ray dosing. Thus, it is essential to provide a unified view between
the manufacturers and the users in this case.
The research will further provide input to measurements of very fast transients (VFT) in nanosecond range, which
is essential for the measurement of transmitted overvoltages, which is
critical for insulation coordination of Gas Insulated Systems (GIS). Manufacturers of
instrument transformers and GIS need traceable measurements and new methods for the measurement
of VFT, which is not covered by the National Metrology Institutes today.
Traceability is also needed for low level partial discharge (PD) measurement techniques for equipment under DC stress, to detect and
prevent insulation failures, e.g. for DC transmission and distribution using
cables. The power grid operators and manufacturers of equipment for DC grids
need new methods for PD detection. Traceability for low level PD for early
detection of faults in all power grids is also needed for the development and
testing of equipment.