Incomplete Cross-Bonding in the MV Line. Experience from the Operation of MV Single Cable Lines - Publikacja - MOST Wiedzy

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Incomplete Cross-Bonding in the MV Line. Experience from the Operation of MV Single Cable Lines

Abstrakt

Cable lines are one of the basic components of power systems. Medium and high voltage cables mainly comprise a metallic sheath, which is concentric to the main core conductor. There are several operating schemes of such cable lines, which differ in the place of earthing of sheaths and the possible use of the sheaths and/or conductors crossing. The sheaths cross-bonding is typically done in two places of one cable line section, and it allows to reduce power losses. Nevertheless, the use of incomplete sheaths crossing—only in one place on cable route may have economic justification. The paper presents an incomplete sheaths cross-bonding analysis of an existing medium voltage cable line. The results obtained by the mathematical model are validated by measurements taken on 30 October 2019 on an existing cable line. Measurements recorded on a real object for various systems of crossing sheaths are presented. The influence of incorrect sheaths crossing on the measured quantities was shown. In addition, the risk of excess voltage on the sheaths during short-circuits has been verified using a mathematical model.

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
ENERGIES nr 13,
ISSN: 1996-1073
Język:
angielski
Rok wydania:
2020
Opis bibliograficzny:
Dobrzyński K., Lubośny Z., Klucznik J., Grala J., Falkowski D.: Incomplete Cross-Bonding in the MV Line. Experience from the Operation of MV Single Cable Lines// ENERGIES -Vol. 13,iss. 20 (2020), s.5292-
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.3390/en13205292
Weryfikacja:
Politechnika Gdańska

wyświetlono 27 razy

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