Performance of Restricted Fault and Bias Differential Protection Against Earth Fault on a Transformer

Autor:	N.H. Hashim, N.H. Halim, S.N.M. Arshad, M.H. Hussain, S.R.A. Rahim, A.A. Suleiman
Rok vydání:	2022
Předmět:	History Computer Science Applications Education
Zdroj:	Journal of Physics: Conference Series. 2312:012005
ISSN:	1742-6596 1742-6588
DOI:	10.1088/1742-6596/2312/1/012005
Popis:	In this paper, the effectiveness of restricted earth fault and bias differential protection against earth fault on of transformer winding is presented. Earth fault is one of the failures that occurs on a power transformer winding. Its magnitude depends on how the neutral is connected and the location of fault. For a transformer which is connected to Neutral Earth Resistance (NER), as the fault moves towards its neutral, the magnitude of fault current decreases and the detection of fault diminishes, thus limiting percentage of winding that can be protected. To overcome this problem, restricted earth fault is employed. This paper will show that based on its principles, restricted earth fault protection is more sensitive and provide better coverage for the star winding against earth fault especially resistance earthed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::af5c8c23c38724d869da4b9926bea037 https://doi.org/10.1088/1742-6596/2312/1/012005 Zobrazit plný text záznamu