Impact of Axial Displacement on Power Transformer FRA Signature
MetadataShow full item record
Copyright © 2013 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Frequency response analysis (FRA) is gaining global popularity in detecting power transformer winding movement due to the development of FRA test equipment. However, because FRA relies on graphical analysis, interpretation of its signatures is still a very specialized area that calls for skillful personnel to detect the sort and likely place of the fault as so far, there is no reliable standard code for FRA signature classification and quantification. This paper investigates the impact of transformer winding axial displacement on its FRA signature as a step toward the establishment of reliable codes for FRA interpretation. In this context a detailed model for a singlephase transformer is simulated using 3D finite element analysis to emulate a close to real transformer. The impact of axial displacement on the electrical distributed parameters model that are calculated based on the transformer physical dimension is examined to investigate how model’s parameters including inductance and capacitance matrices change when axial displacement takes place within a power transformer.
Showing items related by title, author, creator and subject.
Improved Power Transformer Winding Fault Detection using FRA Diagnostics – Part 1: Axial Displacement SimulationHashemnia, Seyednaser; Abu-Siada, Ahmed; Islam, Syed (2015)Frequency response analysis (FRA) has become a widely accepted tool to detect power transformer winding deformation due to the development of FRA test equipment. Because FRA relies on graphical analysis, interpretation ...
Understanding online frequency response signatures for transformer winding deformation: Axial displacement simulationZhao, Z.; Islam, Syed; Hashemnia, N.; Hu, D.; Yao, C. (2016)The power transformer is considered as the most critical and expensive device in substation, however, the irreversible transformer winding mechanical deformation can eventually develop into catastrophic failure if no ...
Hashemnia, N.; Abu-Siada, Ahmed; Masoum, Mohammad Sherkat; Islam, Syed (2012)Frequency response analysis (FRA) is gaining global popularity in detecting power transformer winding and core deformations due to the development of FRA test equipment. However, because FRA relies on graphical analysis, ...