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Original scientific paper

Why is water killing power transformer insulation?

Martin Anglhuber ; OMICRON electronics

Fulltext: english, pdf (5 MB) pages 106-112 downloads: 205* cite
APA 6th Edition
Anglhuber, M. (2017). Why is water killing power transformer insulation?. Transformers Magazine, 4 (3), 106-112. Retrieved from https://hrcak.srce.hr/185304
MLA 8th Edition
Anglhuber, Martin. "Why is water killing power transformer insulation?." Transformers Magazine, vol. 4, no. 3, 2017, pp. 106-112. https://hrcak.srce.hr/185304. Accessed 23 Jan. 2021.
Chicago 17th Edition
Anglhuber, Martin. "Why is water killing power transformer insulation?." Transformers Magazine 4, no. 3 (2017): 106-112. https://hrcak.srce.hr/185304
Harvard
Anglhuber, M. (2017). 'Why is water killing power transformer insulation?', Transformers Magazine, 4(3), pp. 106-112. Available at: https://hrcak.srce.hr/185304 (Accessed 23 January 2021)
Vancouver
Anglhuber M. Why is water killing power transformer insulation?. Transformers Magazine [Internet]. 2017 [cited 2021 January 23];4(3):106-112. Available from: https://hrcak.srce.hr/185304
IEEE
M. Anglhuber, "Why is water killing power transformer insulation?", Transformers Magazine, vol.4, no. 3, pp. 106-112, 2017. [Online]. Available: https://hrcak.srce.hr/185304. [Accessed: 23 January 2021]

Abstracts
Water is a threat to the insulation of oil (or ester) insulated power transformers. It leads to reduced breakdown strength of the oil and an accelerated aging of the cellulose insulation. Dielectric frequency response analysis is a suitable and accurate way to assess the water content of the insulation and it helps to determine the condition and remaining lifetime of the transformer. Prior drawbacks of this technology, such as long measurement times and complex assessment, can be eliminated using modern software. The polarization depolarization current PDC+ technique, an improved version of the PDC measurement, reduces the measurement time up to a factor of 20. With this technology, a range from 1 kHz to 10 µHz can be measured in less than two hours. Further automation of the whole measurement and assessment process makes the PDC+ technique easy and reliable for all users.

Keywords
moisture; power transformer insulation; frequency domain spectroscopy (FDS); polarization depolarization current (PDC+); dielectric frequency response (DFR); water content

Hrčak ID: 185304

URI
https://hrcak.srce.hr/185304

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