Transformers Magazine, Vol. 10 No. 4, 2023.
Izvorni znanstveni članak
DGA monitor accuracy – Data and decisions
Tony McGrail
Sažetak
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.
Ključne riječi
DGA; DGA monitor; accuracy; extraction method; CIGRE; diagnoses; Duval triangle
Hrčak ID:
308706
URI
Datum izdavanja:
10.10.2023.
Posjeta: 490 *