EFFECT OF CLAMPING PRESSURE ON TRANSFORMER WINDING VIBRATION

Ning Wang, Xishan Jiang, Ming Jin, Jing Zheng, Jie Pan

Research output: Chapter in Book/Conference paperConference paperpeer-review

Abstract

In this paper, the effect of clamping pressure on the vibration of transformer winding is examined. For a steady-state force excitation at 100 Hz, the spatial variations of the amplitude and phase of the winding increase as the clamping pressure decreases. This result is consistent with the previously observed increase of spatial variation in the phase of power transformers with mechanical faults in the windings. Further measurement of the frequency response function of a winding structure reveals the mechanisms involved in the increased variation for transformers with loosened clamping. It is shown that reduction of the clamping pressure causes a shift of higher-order resonance modes towards the low-frequency region. The increased participation of those modes in the forced vibration response results in the increased spatial variation in the measured amplitude and phase.

Original languageEnglish
Title of host publicationProceedings of the 29th International Congress on Sound and Vibration, ICSV 2023
EditorsEleonora Carletti
Place of PublicationPrague
PublisherSociety of Acoustics
Number of pages6
ISBN (Electronic)9788011034238
Publication statusPublished - 2023
Event29th International Congress on Sound and Vibration, ICSV 2023 - Prague, Czech Republic
Duration: 9 Jul 202313 Jul 2023

Publication series

NameProceedings of the International Congress on Sound and Vibration
ISSN (Electronic)2329-3675

Conference

Conference29th International Congress on Sound and Vibration, ICSV 2023
Country/TerritoryCzech Republic
CityPrague
Period9/07/2313/07/23

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