Review of the problems related to failure of metal resistor in power transformer neutral

Autor:	Kostić Vojin
Jazyk:	English<br />Serbian
Rok vydání:	2017
Předmět:	medium voltage network metal resistor grounding integrity monitoring ground fault protection Electrical engineering. Electronics. Nuclear engineering TK1-9971
Zdroj:	Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", Vol 27, Iss 27, Pp 11-19 (2017)
Druh dokumentu:	article
ISSN:	0350-8528 2406-1212
DOI:	10.5937/zeint27-15388
Popis:	In case of a neutral-grounding resistor failure, the low impedance grounded network become ungrounded. This can lead to a very high level of transient overvoltages due to intermittent arcing faults. Also, in the dominant cable networks, there is a possibility of earth fault current extinction. In this way, places with weakened insulation, which may be the cause of multiple failures, are created in the network. Accordingly, the paper points out the necessity and affirmation of existing solutions for continuous monitoring of neutral grounding resistors, also proposing a universal technical solution.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/d9cf1375ff1143b2b5bdefc4885575d0 Zobrazit plný text záznamu View record in DOAJ