Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Igor Žiger"'
Publikováno v:
IEEE Access, Vol 6, Pp 29426-29435 (2018)
Power voltage transformers (PVTs) are becoming increasingly present in different substation solutions on a world scale. Such units that are based on the open-core concept introduce several advantages in terms of transformer performance and reliabilit
Externí odkaz:
https://doaj.org/article/1bf94cac56fa48d2b0b08cf7e1fafb94
Publikováno v:
Energies, Vol 17, Iss 4, p 799 (2024)
High voltage connections will discharge through inductive voltage and combined transformers when they are switched off. In the past, there was a wide margin between the required capabilities and the actual capabilities of these components. Nowadays,
Externí odkaz:
https://doaj.org/article/150ab0db270c405daac3f777abd95255
Publikováno v:
Energies, Vol 17, Iss 2, p 493 (2024)
Internal arc testing is still a controversial topic in the instrument transformer world. The main reason for that is the fact that even a fully successful test guarantees only a certain degree of transformer safety. Furthermore, the test does not cov
Externí odkaz:
https://doaj.org/article/b8a62e27b62545dbbd7c9d7423057433
Publikováno v:
Applied Sciences, Vol 11, Iss 23, p 11543 (2021)
Losses due to eddy currents in an open-type transformer core are significantly reduced by the lamination of the transformer core. In order to further reduce the eddy current losses, the open-type core often has a multi-part structure, i.e., it is com
Externí odkaz:
https://doaj.org/article/60248441fdc044cc998721b69faf296a
Publikováno v:
Energies, Vol 14, Iss 16, p 5144 (2021)
Knowledge of lightning impulse (LI) voltage distribution over transformer windings during the design stage of the transformer is very important. Specific design differences in inductive voltage transformers make the transient analysis approach differ
Externí odkaz:
https://doaj.org/article/4e880d6cafc64e638e3b4ce859afe181
Publikováno v:
Journal of Energy : Energija
Volume 63
Issue 1-4
Volume 63
Issue 1-4
Designing inductive voltage transformers for the highest voltage levels (550 kV and above) is a true challenge indeed. The main reason for this is their complex internal R-L-C structure, including an insulating system which needs to be resistant to a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c7e039bde290f2f673357a9040ef8d6
https://doi.org/10.37798/2014631-4164
https://doi.org/10.37798/2014631-4164
Publikováno v:
Applied Sciences, Vol 11, Iss 11543, p 11543 (2021)
Losses due to eddy currents in an open-type transformer core are significantly reduced by the lamination of the transformer core. In order to further reduce the eddy current losses, the open-type core often has a multi-part structure, i.e., it is com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::66798734f8db32eb21cf9bb7f854a039
https://www.mdpi.com/2076-3417/11/23/11543
https://www.mdpi.com/2076-3417/11/23/11543
Publikováno v:
Energies, Vol 14, Iss 5144, p 5144 (2021)
Energies; Volume 14; Issue 16; Pages: 5144
Energies; Volume 14; Issue 16; Pages: 5144
Knowledge of lightning impulse (LI) voltage distribution over transformer windings during the design stage of the transformer is very important. Specific design differences in inductive voltage transformers make the transient analysis approach differ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6c790f2a770c57a9aba7b58750d0442
https://doi.org/10.3390/en14165144
https://doi.org/10.3390/en14165144
Publikováno v:
Lecture Notes in Electrical Engineering ISBN: 9789811555992
Relevant international instrument transformer standards specify internal arc testing to prove the transformer behavior under internal fault conditions. However, the test is defined in a way that does not recognize that it is possible to limit and red
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::480b826dab874ba361a20697191ed3c8
https://doi.org/10.1007/978-981-15-5600-5_16
https://doi.org/10.1007/978-981-15-5600-5_16
Publikováno v:
Electric Power Systems Research. 163:647-654
Modular Multilevel Converters (MMC) HVDC converter station topologies require the use of high-impedance grounding reactors on the converter side of power transformers. The main requirement for such units is the ability to withstand simultaneous AC an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c10a368847a0910ba6087da4df8885ba
https://doi.org/10.1016/j.epsr.2017.10.017
https://doi.org/10.1016/j.epsr.2017.10.017