title: ÐÐµÑÐ¾Ð´ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð¼ÐµÑÑÐ° Ð¿Ð¾Ð²ÑÐµÐ¶Ð´ÐµÐ½Ð¸Ñ Ð¿ÑÐ¸ Ð¾Ð´Ð½Ð¾ÑÐ°Ð·Ð½Ð¾Ð¼ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ð¸ Ð½Ð° Ð·ÐµÐ¼Ð»Ñ Ð² ÐºÐ°Ð±ÐµÐ»ÑÐ½Ð¾Ð¹ ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð¹ ÑÐµÑÐ¸ Ð¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÐµÐ³Ð¾ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Method for determining the location of damage in a single-phase earth fault in a cable distribution network and research of its effectiveness
Creators: name: Ð¡ÑÑÐ¸Ð½Ð°, ÐÐ½Ð½Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð¿Ð¾Ð²ÑÐµÐ¶Ð´ÐµÐ½Ð½Ð°Ñ ÐºÐ°Ð±ÐµÐ»ÑÐ½Ð°Ñ Ð»Ð¸Ð½Ð¸Ñ
Ð¾Ð´Ð½Ð¾ÑÐ°Ð·Ð½Ð¾Ðµ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ðµ Ð½Ð° Ð·ÐµÐ¼Ð»Ñ
ÐºÐ°Ð±ÐµÐ»ÑÐ½Ð°Ñ ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»Ð¸ÑÐµÐ»ÑÐ½Ð°Ñ ÑÐµÑÑ
damaged cable line
single-phase earth fault
cable distribution network

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description: ABSTRACT
105 pages, 74 figures, 16 tables, 5 appendices
KEYWORDS: DAMAGED CABLE LINE SINGLE-PHASE EARTH FAULT, CABLE DISTRIBUTION NETWORK.
The subject of the graduate qualification work is âMethod for determining the location of damage in a single-phase earth fault in a cable distribution network and research of its effectivenessâ.
This work is devoted to the selection and justification of the optimal neutral grounding mode of the 6 kV substation 35 kV Saburtalo-1 cable distribution network and the study of the effectiveness of the method for determining the damaged line in a single-phase earth fault in a cable distribution network with an isolated or compensated neutral based on a simulated computer model of the distribution cable network. Tasks that were solved during the research:
1. Creating a computer model of the 6 kV distribution cable network of the 35 kV Saburtalo-1 substation.
2. Investigation of the process of overvoltage occurrence in an intermittent arc for various modes of neutral grounding in the created computer model.3. Justification and selection of the optimal mode of neutral grounding 6 kV substation 35 kV Saburtalo-1.
3. Selection of the optimal neutral ground mode for 6 kV substation 35 kV Saburtalo-1.
4. Study of the effectiveness of the method for determining the damaged cable line in a single-phase earth fault in the distribution cable network 6 kV substation 35 kV Saburtalo-1 with an isolated and compensated neutral.
As a result, a low-resistance resistive neutral ground was selected for 6 kV substation 35 kV Saburtalo-1. In addition, during the study of the effectiveness of the method for determining the damaged cable line at the OPZ in the cable distribution network of 6 kV substation 35 kV Saburtalo-1 with isolated and compensated neutral, current waveforms were obtained for two types of OPZ with isolated and compensated neutral. Research on the effectiveness of the method has shown that the described method can lead to erroneous results.