Transformer sound level caused by core magnetostriction and winding stress displacement variation

Chang Hung Hsu, Yi Mei Huang, Min Fu Hsieh, Chao Ming Fu, Shiva Adireddy, Douglas B. Chrisey

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)

摘要

Magnetostriction caused by the exciting variation of the magnetic core and the current conducted by the winding wired to the core has a significant result impact on a power transformer. This paper presents the sound of a factory transformer before on-site delivery for no-load tests. This paper also discusses the winding characteristics from the transformer full-load tests. The simulation and the measurement for several transformers with capacities ranging from 15 to 60 MVA and high voltage 132kV to low voltage 33 kV are performed. This study compares the sound levels for transformers by no-load test (core/magnetostriction) and full-load test (winding/displacement ε). The difference between the simulated and the measured sound levels is about 3dB. The results show that the sound level depends on several parameters, including winding displacement, capacity, mass of the core and windings. Comparative results of magnetic induction of cores and the electromagnetic force of windings for no-load and full-load conditions are examined.

原文English
文章編號056681
期刊AIP Advances
7
發行號5
DOIs
出版狀態Published - 2017 五月 1

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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