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Overvoltage Analysis during Earth Fault for Different Treatment of Neutral Point in Distribution Network Cover

Overvoltage Analysis during Earth Fault for Different Treatment of Neutral Point in Distribution Network

Open Access
|Nov 2022

Abstract

The paper consists of three parts. In the introduction and the first part of this paper are given basic theoretical considerations on possible ways for treatment of the neutral point in distribution grids with special reference to the method of neutral grounding of distribution transformers through a low ohmic resistor and a compensation coil. The second part gives the use analysis of a low ohmic resistor and a compensation coil as the future choice of neutral point grounding on the particular distribution grid powered by a substation TS 35/10 kV. In the third part of the paper, the results were obtained using an adequate dynamic distribution model, using the EMTP-ATP software package. Also, in this part, calculations are made for neutral grounding through a low ohmic resistor, a compensation coil, as well as in the case of isolated grids, and a comparison of the obtained values of the overvoltage coefficients.

DOI: https://doi.org/10.2478/bhee-2020-0013 | Journal eISSN: 2566-3151 | Journal ISSN: 2566-3143
Language: English
Page range: 53 - 60
Submitted on: Oct 1, 2019
Accepted on: Feb 1, 2020
Published on: Nov 1, 2022
Published by: Bosnia and Herzegovina National Committee CIGRÉ
In partnership with: Paradigm Publishing Services
Publication frequency: 2 issues per year

© 2022 Alija Jusić, Zijad Bajramović, Irfan Turković, Maja Muftić Dedović, published by Bosnia and Herzegovina National Committee CIGRÉ
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.