Impact of the operating mode of neutral in 35 kV power grids on the arc overvoltages and voltage teasuring transformers
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Date
2015
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Lviv Polytechnic Publishing House
Abstract
Has been analyzed possible methods of earthing of neutrals in 35 kV power grid. Among the most common injuries in these electrical system are arc circuits, that is why the dependence of overvoltage multiplicities on the nature of earth arcing and on the method of earth arrangement of electrical system neutral. Given that in 35 kV power grids may arise ferroresonant processes, operation of voltage measuring transformers has been researched during unstable earth arcing.
Description
Keywords
power grid, arc overvoltage, digital model, insulated neutral, resonant-earth neutral, overvoltage ratio, resistance-earth neutral, voltage transformers
Citation
Yatseyko A. Impact of the operating mode of neutral in 35 kV power grids on the arc overvoltages and voltage teasuring transformers / Andriy Yatseyko, Volodimir Andrushko // Litteris et Artibus : proceedings of the 5th International youth science forum, November 26–28, 2015, Lviv, Ukraine / Lviv Polytechnic National University. – Lviv : Lviv Polytechnic Publishing House, 2015. – P. 170–173. – Bibliography: 6 titles.