Published October 29, 2020 | Version v1
Conference paper Open

Traceable Characterization of Low Power Voltage Instrument Transformers for PQ and PMU Applications

  • 1. Istituto Nazionale di Ricerca Metrologica (INRiM)
  • 2. Dept. of Engineering, University of Campania "Luigi Vanvitelli"

Description

Diffusion of digital technologies in transmission and distribution substations is fostering utilization of low power instrument transformers for use in in metering, protection, as well as in monitoring and control applications. From the metrological point of view, new reference systems and procedures are needed to ensure traceable measurement, in particular when these low power sensors are coupled with phasor or power quality measurement unit, to identify their uncertainty contribution in the evaluation of the output parameters. In this scenario, a reference set-up for the characterization of voltage sensors with analog or digital output is described. First examples of characterization of a low power voltage transformer in presence of dynamic and power quality signals are shown.

Notes

17IND06 Future Grid II project has received funding from the EMPIR Programme co-financed by the Participating States and from the European Union's Horizon 2020 research and innovation progamme.Union

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Conference paper: 10.1109/CPEM49742.2020.9191803 (DOI)