Sustainable operation analysis of the mining industry power supply system

The paper presents an analysis of operating currents and torques during self-starting of motors with a voltage of 6 kV for cases of short circuit in the head feeders from the main step-down substation and in the feeders to the most distant substations of mining enterprises. For the network under con...

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Autores principales:	Klyuev Roman, Tekiev Marat, Silaev Vadim, Bosikov Igor, Gavrina Oksana
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/4a6704f2fcac479397abf6f210c548e5
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id	oai:doaj.org-article:4a6704f2fcac479397abf6f210c548e5
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spelling	oai:doaj.org-article:4a6704f2fcac479397abf6f210c548e52021-12-02T17:12:02ZSustainable operation analysis of the mining industry power supply system2267-124210.1051/e3sconf/202132600016https://doaj.org/article/4a6704f2fcac479397abf6f210c548e52021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/102/e3sconf_ipdme2021_00016.pdfhttps://doaj.org/toc/2267-1242The paper presents an analysis of operating currents and torques during self-starting of motors with a voltage of 6 kV for cases of short circuit in the head feeders from the main step-down substation and in the feeders to the most distant substations of mining enterprises. For the network under consideration, the characteristic modes are: short circuit on the buses of shop substations. For the mining industry when selfstarting asynchronous motors with a squirrel-cage rotor and synchronous motors with asynchronous startup, the current multiplicity will be determined by the duration of the power failure (run-down duration). It has been established that the acceleration of motors during self-start will be somewhat slower than the usual start, since self-start begins at a speed of 0.89–0.94 of the synchronous speed and a resistance torque is equal to 0.65–0.75 of the maximum motor torque. The self-starting time of the motors is from 9 s to 42 s. To ensure self-starting conditions in the most severe modes in mountain conditions, it is necessary to make changes to the protection settings presented in the work.Klyuev RomanTekiev MaratSilaev VadimBosikov IgorGavrina OksanaEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 326, p 00016 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Klyuev Roman Tekiev Marat Silaev Vadim Bosikov Igor Gavrina Oksana Sustainable operation analysis of the mining industry power supply system
description	The paper presents an analysis of operating currents and torques during self-starting of motors with a voltage of 6 kV for cases of short circuit in the head feeders from the main step-down substation and in the feeders to the most distant substations of mining enterprises. For the network under consideration, the characteristic modes are: short circuit on the buses of shop substations. For the mining industry when selfstarting asynchronous motors with a squirrel-cage rotor and synchronous motors with asynchronous startup, the current multiplicity will be determined by the duration of the power failure (run-down duration). It has been established that the acceleration of motors during self-start will be somewhat slower than the usual start, since self-start begins at a speed of 0.89–0.94 of the synchronous speed and a resistance torque is equal to 0.65–0.75 of the maximum motor torque. The self-starting time of the motors is from 9 s to 42 s. To ensure self-starting conditions in the most severe modes in mountain conditions, it is necessary to make changes to the protection settings presented in the work.
format	article
author	Klyuev Roman Tekiev Marat Silaev Vadim Bosikov Igor Gavrina Oksana
author_facet	Klyuev Roman Tekiev Marat Silaev Vadim Bosikov Igor Gavrina Oksana
author_sort	Klyuev Roman
title	Sustainable operation analysis of the mining industry power supply system
title_short	Sustainable operation analysis of the mining industry power supply system
title_full	Sustainable operation analysis of the mining industry power supply system
title_fullStr	Sustainable operation analysis of the mining industry power supply system
title_full_unstemmed	Sustainable operation analysis of the mining industry power supply system
title_sort	sustainable operation analysis of the mining industry power supply system
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/4a6704f2fcac479397abf6f210c548e5
work_keys_str_mv	AT klyuevroman sustainableoperationanalysisoftheminingindustrypowersupplysystem AT tekievmarat sustainableoperationanalysisoftheminingindustrypowersupplysystem AT silaevvadim sustainableoperationanalysisoftheminingindustrypowersupplysystem AT bosikovigor sustainableoperationanalysisoftheminingindustrypowersupplysystem AT gavrinaoksana sustainableoperationanalysisoftheminingindustrypowersupplysystem
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Sustainable operation analysis of the mining industry power supply system

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