Title :
Comparative analysis of three-phase and single-phase dynamic resistance measurement results
Author :
Kristensen, Henric ; Mrdic, Voyo
Author_Institution :
ABB AB, Västerås, Sweden
Abstract :
Dynamic resistance measurement (DRM) has been proven to be a very effective method in detecting possible faults in on-load tap changers (OLTC). This article gives an overview of the correlation between the three-phase DRM results and the single-phase DRM results. The measurement of OLTC synchronization is also explained. In addition, the demagnetization, which is necessary after any DC test on a transformer, is also described in the second part of this paper.
Keywords :
demagnetisation; electric resistance measurement; fault diagnosis; transformer windings; DC test; DRM; OLTC synchronization; demagnetization; fault detection; on-load tap changer; single-phase dynamic resistance measurement; three-phase dynamic resistance measurement; transformer;
Conference_Titel :
Electricity Distribution (CIRED 2013), 22nd International Conference and Exhibition on
Conference_Location :
Stockholm
Electronic_ISBN :
978-1-84919-732-8
DOI :
10.1049/cp.2013.0749
