Three-dimensional vibration analysis of single-phase transformer winding under inter-disc fault

Transformer real-time monitoring systems have been studied for the last decade for developing transformer prognosis techniques. Transformer mechanical defect is one of those crucial subjects which need to be taken into account for prognosis before failure is occur for transformer. Among all mechanic...

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Bibliographic Details
Published in2017 International Symposium on Electrical Insulating Materials (ISEIM) Vol. 2; pp. 512 - 515
Main Authors Nezhivenko, Svyatoslav, Bagheri, Mehdi, Phung, Toan
Format Conference Proceeding
LanguageEnglish
Published Technical Committee on Dielectrics & Electrical Insulation, IEEJ 01.09.2017
Subjects
Circuit faults
Inter-disc fault
Phase transformers
Power transformer insulation
Transformer cores
Transformer prognosis
Vibration analysis
Vibrations
Windings
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DOI10.23919/ISEIM.2017.8166539

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Summary:Transformer real-time monitoring systems have been studied for the last decade for developing transformer prognosis techniques. Transformer mechanical defect is one of those crucial subjects which need to be taken into account for prognosis before failure is occur for transformer. Among all mechanical defects in transformer, transformer inter-disc short circuit is quite common in transformer fault reports. Hence, this study is practically focused on analysis the vibration spectrum of transformer under inter-disc fault. Vibration model for transformer core and winding are explained and inter-disc fault is emulated practically over a single-phase laboratory size transformer. Three-dimensional vibration results are provided and discussed in detail.
DOI:10.23919/ISEIM.2017.8166539