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The influence of long transmission lines on the overvoltage distribution across power transformer windings

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dc.contributor.author CURTEANU, Ciprian
dc.contributor.author DELEANU, Sorin
dc.contributor.author IORDACHE, Mihai
dc.contributor.author CIUMBULEA, Gloria
dc.contributor.author GALAN, Neculai
dc.date.accessioned 2019-11-20T10:57:44Z
dc.date.available 2019-11-20T10:57:44Z
dc.date.issued 2017
dc.identifier.citation CURTEANU, Ciprian, DELEANU, Sorin, IORDACHE, Mihai et al. The influence of long transmission lines on the overvoltage distribution across power transformer windings [Resursă electronică]. In: SIELMEN 2017: Proceedings of the 11-th international conference on electromechanical and power systems, 11-13 octombrie, 2017. Chișinău, 2017, pp. 209-214. ISBN 978-1-5386-1846-2. en_US
dc.identifier.isbn 978-1-5386-1846-2
dc.identifier.uri http://repository.utm.md/handle/5014/7042
dc.description Abstract & References en_US
dc.description.abstract This is a study presenting the impact of the long transmission lines on the overvoltage distribution across power transformer windings. The overvoltage propagates along the transmission line until reaches a HV winding, then is distributed across it. For the purpose of transient overvoltage evaluation, the HV winding is considered with distributed parameters. The long transmission line is substituted then by an equivalent circuit composed by series connected two-port elements. According to simulation results, the values of the line parameters play a significant role in determining the voltage across the HV winding. The strongly capacitive character of long power lines causes a larger voltage measured across the HV winding, compared to the line input. Moreover, the effective length of the transmission line is in direct correlation with the overvoltage amplitude across the HV winding. For this study, the model based upon lumped parameters and disk coils is suitable and provides appropriate information regarding the insulation requirements, as well. The signal which emulated the commutation overvoltage had a time variation closed to a step-up. All the numerical simulations from this paper have been performed running a software package called SYSEG (Symbolic State Equation Generation), prior developed by the authors. en_US
dc.language.iso en en_US
dc.publisher Institute of Electrical and Electronics Engineers en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject transmission lines en_US
dc.subject transformers en_US
dc.subject overvoltage en_US
dc.subject transients en_US
dc.subject disk coil en_US
dc.subject modeling en_US
dc.subject eigenvalues en_US
dc.title The influence of long transmission lines on the overvoltage distribution across power transformer windings en_US
dc.type Article en_US


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  • 2017
    11-13 Oct. 2017

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Attribution-NonCommercial-NoDerivs 3.0 United States Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 United States

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