NDLI: Temperature influence on FRA spectrum of oil-filled and oil-free single-phase transformer

Content Provider	IEEE Xplore Digital Library
Author	Bagheri, M. Phung, B.T. Blackburn, T.
Copyright Year	2015
Description	Author affiliation: Sch. of Electr. Eng. & Telecommun., Univ. of New South Wales, Sydney, NSW, Australia (Bagheri, M.; Phung, B.T.; Blackburn, T.)
Abstract	A fast, non-destructive, and accurate technique has been introduced more than 30 years ago and industrialized since the last decade to recognize the transformer mechanical defect. This method called Frequency Response Analysis (FRA) and implemented as an off-line technique. Nowadays, transformer researchers as well as experts showing significant interest in real-time application of diagnosis methods such as Frequency Response Analysis (FRA), while accurate interpretation of FRA signature is still challenging. Recent studies reveal that apart from winding deformation, FRA data can also be influenced by temperature and moisture variation in transformer paper insulation. Hence, this study has specifically concentrated on the influence of temperature variation of the transformer winding on FRA spectrum. For this, a single phase model transformer is fabricated and taken as a test object. The test object temperature in the presence and absence of the oil, before and after dry-out process is changed widely from low to high temperatures and the frequency response traces of the windings are recorded. The results are discussed in detail and deviated anti-response and resonances are compared.
Starting Page	955
Ending Page	958
File Size	927508
Page Count	4
File Format	PDF
ISSN	21609241
e-ISBN	9781479989034
DOI	10.1109/ICPADM.2015.7295432
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-19
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Windings Oil insulation Power transformer insulation Resonant frequency Temperature measurement Frequency response Moisture Transformer diagnosis Frequency response analysis Moisture content Temperature
Content Type	Text
Resource Type	Article

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Influence of temperature on frequency response analysis of transformer winding

Influence of moisture content variation on Frequency Response Analysis of transformer winding

Shunt capacitance influences on single-phase transformer FRA spectrum

Influence of temperature and moisture content on frequency response analysis of transformer winding

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The influence of dielectric dissipation factor on transformer Frequency Response Analysis

Impact of transformer winding dry-out on frequency response analysis

Experience with frequency response analysis (FRA) for the mechanical condition assessment of transformer windings

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Temperature influence on FRA spectrum of oil-filled and oil-free single-phase transformer

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