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
Publication date:
25.3.2024.
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