INVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID

Introduction. Earthing device electrical substation in modern conditions must meet both the requirements of electrical safety of people and animals, as well as electromagnetic compatibility requirements established her electrical equipment. These requirements are intended to address issues of protec...

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Autores principales:	V. I. Nizhevskyi, I. V. Nizhevskyi, B. Ynoyatov, S. Nasryddyny
Formato:	article
Lenguaje:	EN RU UK
Publicado:	National Technical University "Kharkiv Polytechnic Institute" 2015
Materias:	substation electrical safety electromagnetic compatibility grounding device equivalent circuit single-phase short-circuit current distribution algorithm calculation analysis design Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/a5535cea18a44fca965e6be43ac7161a
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spelling	oai:doaj.org-article:a5535cea18a44fca965e6be43ac7161a2021-12-02T16:13:36ZINVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID2074-272X2074-272Xhttps://doaj.org/article/a5535cea18a44fca965e6be43ac7161a2015-04-01T00:00:00Zhttp://eie.khpi.edu.ua/article/view/42091https://doaj.org/toc/2074-272Xhttps://doaj.org/toc/2074-272XIntroduction. Earthing device electrical substation in modern conditions must meet both the requirements of electrical safety of people and animals, as well as electromagnetic compatibility requirements established her electrical equipment. These requirements are intended to address issues of protection against surges and interference caused by lightning impulse currents and switching. Aim. To investigate the distribution of single-phase short-circuit current in the substation grounding devices. Task. On the basis of the proposed design scheme of substitution substation grounding device, consisting of a substation earthing system and «cable-supported» an algorithm for calculating the resistance of the grounding device substation and distribution of single-phase short-circuit current on the circuit elements. Method. Mathematical modeling and calculation engine. Results. On the basis of calculations and studies analyzed the current distribution of single-phase short-circuit between the substation earthing system and earthing «rope-reliance». Studies carried out for the actual range of variation of the circuit parameters, showed that the earthing resistance substation substantially affects the current distribution in the one-phase short circuit fault. For example, using the graph shows that with increasing resistance grounding system of "rope-supported" the proportion of single-phase short-circuit current flowing from the substation earthing increases, while the proportion of single-phase short-circuit current flowing from the grounding device supports decreases and vice versa. In addition, when rationing grounding systems at substations for the touch voltage is necessary to analyze all the possible modes of operation of the network, which is substationed. Conclusion. The results obtained are recommended to take into account in the design of grounding systems at substations.V. I. NizhevskyiI. V. NizhevskyiB. YnoyatovS. NasryddynyNational Technical University "Kharkiv Polytechnic Institute"articlesubstationelectrical safetyelectromagnetic compatibilitygrounding deviceequivalent circuitsingle-phase short-circuit currentdistributionalgorithmcalculationanalysisdesignElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENRUUKElectrical engineering & Electromechanics, Iss 2, Pp 72-75 (2015)
institution	DOAJ
collection	DOAJ
language	EN RU UK
topic	substation electrical safety electromagnetic compatibility grounding device equivalent circuit single-phase short-circuit current distribution algorithm calculation analysis design Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	substation electrical safety electromagnetic compatibility grounding device equivalent circuit single-phase short-circuit current distribution algorithm calculation analysis design Electrical engineering. Electronics. Nuclear engineering TK1-9971 V. I. Nizhevskyi I. V. Nizhevskyi B. Ynoyatov S. Nasryddyny INVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID
description	Introduction. Earthing device electrical substation in modern conditions must meet both the requirements of electrical safety of people and animals, as well as electromagnetic compatibility requirements established her electrical equipment. These requirements are intended to address issues of protection against surges and interference caused by lightning impulse currents and switching. Aim. To investigate the distribution of single-phase short-circuit current in the substation grounding devices. Task. On the basis of the proposed design scheme of substitution substation grounding device, consisting of a substation earthing system and «cable-supported» an algorithm for calculating the resistance of the grounding device substation and distribution of single-phase short-circuit current on the circuit elements. Method. Mathematical modeling and calculation engine. Results. On the basis of calculations and studies analyzed the current distribution of single-phase short-circuit between the substation earthing system and earthing «rope-reliance». Studies carried out for the actual range of variation of the circuit parameters, showed that the earthing resistance substation substantially affects the current distribution in the one-phase short circuit fault. For example, using the graph shows that with increasing resistance grounding system of "rope-supported" the proportion of single-phase short-circuit current flowing from the substation earthing increases, while the proportion of single-phase short-circuit current flowing from the grounding device supports decreases and vice versa. In addition, when rationing grounding systems at substations for the touch voltage is necessary to analyze all the possible modes of operation of the network, which is substationed. Conclusion. The results obtained are recommended to take into account in the design of grounding systems at substations.
format	article
author	V. I. Nizhevskyi I. V. Nizhevskyi B. Ynoyatov S. Nasryddyny
author_facet	V. I. Nizhevskyi I. V. Nizhevskyi B. Ynoyatov S. Nasryddyny
author_sort	V. I. Nizhevskyi
title	INVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID
title_short	INVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID
title_full	INVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID
title_fullStr	INVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID
title_full_unstemmed	INVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID
title_sort	investigation and calculation of valleys of outgoing from substation grounding conductors for short-circuit in single-phase short of electrical grid
publisher	National Technical University "Kharkiv Polytechnic Institute"
publishDate	2015
url	https://doaj.org/article/a5535cea18a44fca965e6be43ac7161a
work_keys_str_mv	AT vinizhevskyi investigationandcalculationofvalleysofoutgoingfromsubstationgroundingconductorsforshortcircuitinsinglephaseshortofelectricalgrid AT ivnizhevskyi investigationandcalculationofvalleysofoutgoingfromsubstationgroundingconductorsforshortcircuitinsinglephaseshortofelectricalgrid AT bynoyatov investigationandcalculationofvalleysofoutgoingfromsubstationgroundingconductorsforshortcircuitinsinglephaseshortofelectricalgrid AT snasryddyny investigationandcalculationofvalleysofoutgoingfromsubstationgroundingconductorsforshortcircuitinsinglephaseshortofelectricalgrid
_version_	1718384367045181440

INVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID

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