Original scientific paper

DGA monitor accuracy – Data and decisions

Tony McGrail

Abstract

This article explores the intricacies of DGA monitor accuracy, emphasising the challenges in extracting dissolved gases from transformer oil. Despite international standards like IEC 60567 recommending a maximum accuracy of 15% for complete DGA systems, real-world application, as reflected in CIGRE brochures, suggests a potential deviation closer to 50%. The implications of varying accuracies on diagnoses, particularly when employing diagnostic tools like the Duval triangle, are analysed.

Keywords

DGA; DGA monitor; accuracy; extraction method; CIGRE; diagnoses; Duval triangle

Hrčak ID:

308706

URI

https://hrcak.srce.hr/308706

Publication date:

10.10.2023.

Visits: 135 *