Original scientific paper

https://doi.org/10.37798/2024731509

Measurement uncertainty in on-line bushing monitoring

Wiesław Gil ; MIKRONIKA, Poznań, Poland *
Wiktor Masłowski ; MIKRONIKA, Poznań, Poland

* Corresponding author.

Abstract

The high voltage bushing online monitoring has been performed for many years to prevent unexpected rapid power network failures. Network unbalance correction, based on separate voltage phase measurement or phasor technique, effectively improves the measurements of bushing dielectric dissipation factor tgδ and capacitance factor C1. The newly implemented monitoring units reveal that the uncertainty of station voltage measuring transformers manifests the greatest influence on the overall uncertainty budget, regardless of the measurement method.

Keywords

Online bushing monitoring; power network unbalance; measuring uncertainty of isolation coefficients

Hrčak ID:

315543

URI

https://hrcak.srce.hr/315543

Publication date:

25.3.2024.

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