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Transformer lifecycle: Short-circuit withstand capability of power transformers – Part II

René Smeets

Puni tekst: engleski, pdf (905 KB) str. 80-85 preuzimanja: 275* citiraj
APA 6th Edition
Smeets, R. (2017). Transformer lifecycle: Short-circuit withstand capability of power transformers – Part II. Transformers Magazine, 4 (3), 80-85. Preuzeto s https://hrcak.srce.hr/202460
MLA 8th Edition
Smeets, René. "Transformer lifecycle: Short-circuit withstand capability of power transformers – Part II." Transformers Magazine, vol. 4, br. 3, 2017, str. 80-85. https://hrcak.srce.hr/202460. Citirano 24.11.2020.
Chicago 17th Edition
Smeets, René. "Transformer lifecycle: Short-circuit withstand capability of power transformers – Part II." Transformers Magazine 4, br. 3 (2017): 80-85. https://hrcak.srce.hr/202460
Harvard
Smeets, R. (2017). 'Transformer lifecycle: Short-circuit withstand capability of power transformers – Part II', Transformers Magazine, 4(3), str. 80-85. Preuzeto s: https://hrcak.srce.hr/202460 (Datum pristupa: 24.11.2020.)
Vancouver
Smeets R. Transformer lifecycle: Short-circuit withstand capability of power transformers – Part II. Transformers Magazine [Internet]. 2017 [pristupljeno 24.11.2020.];4(3):80-85. Dostupno na: https://hrcak.srce.hr/202460
IEEE
R. Smeets, "Transformer lifecycle: Short-circuit withstand capability of power transformers – Part II", Transformers Magazine, vol.4, br. 3, str. 80-85, 2017. [Online]. Dostupno na: https://hrcak.srce.hr/202460. [Citirano: 24.11.2020.]

Sažetak
This article discusses verification of the ability of a transformer to survive short circuit. Fault current leads to large axial and radial forces on windings, which have to be managed by proper structural design. Test experience, showing a failure rate of 20-25 % of well-prepared transformers, suggests that the highest degree of reliability with respect to short-circuit withstand verification is ensured through full-scale testing in accordance with the international standards. The prime failure mode is winding deformation, but many other deficiencies, which would not be discovered in a design review, have also been observed.

Ključne riječi
transformer; short circuit; testing; certification; reliability

Hrčak ID: 202460

URI
https://hrcak.srce.hr/202460

Posjeta: 331 *