Improvement of the methodology for assessing power losses in in-plant power grids
To improve the reliability of calculations of electric power losses in low-voltage electric networks, it is necessary to take into account the influence of the main parameters of electrical equipment. In the course of the study, a structural diagram and an algorithm for determining the equivalent re...
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| Format: | Article |
| Language: | Russian |
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Murmansk State Technical University
2024-12-01
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| Series: | Vestnik MGTU |
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| Online Access: | https://vestnik.mauniver.ru/show-eng.shtml?art=2246 |
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| author | Petrov A. R. Gracheva E. I. Miftakhova N. K. |
| author_facet | Petrov A. R. Gracheva E. I. Miftakhova N. K. |
| author_sort | Petrov A. R. |
| collection | DOAJ |
| description | To improve the reliability of calculations of electric power losses in low-voltage electric networks, it is necessary to take into account the influence of the main parameters of electrical equipment. In the course of the study, a structural diagram and an algorithm for determining the equivalent resistance of the section of the shop network have been proposed; the main factors determining the equivalent resistance of the circuit (resistance of low-voltage switching devices, heating temperature of conductors, ambient temperature, equipment load factor) have been identified; graphical dependencies of the change in the equivalent resistance of the radial and trunk sections of the circuit on the mean square equipment load factor and the heating temperature of conductors have been shown. The total error in estimating the equivalent resistance when calculating without taking into account the main studied parameters of equipment for radial, trunk and mixed circuits is 40 % or more. The error in the results of calculations without taking into account the resistance of contact connections of switching devices can reach 80 %. The obtained dependencies of the equivalent resistance on the main parameters of the equipment are recommended for use to improve the reliability of estimating electric power losses in intra-plant electric networks. |
| format | Article |
| id | doaj-art-d58f69afe9314437b03e4fa011327d4f |
| institution | Kabale University |
| issn | 1560-9278 1997-4736 |
| language | Russian |
| publishDate | 2024-12-01 |
| publisher | Murmansk State Technical University |
| record_format | Article |
| series | Vestnik MGTU |
| spelling | doaj-art-d58f69afe9314437b03e4fa011327d4f2025-01-09T07:39:02ZrusMurmansk State Technical UniversityVestnik MGTU1560-92781997-47362024-12-0127451152010.21443/1560-9278-2024-27-4-511-520Improvement of the methodology for assessing power losses in in-plant power gridsPetrov A. R.0https://orcid.org/0009-0008-4497-4807Gracheva E. I.1https://orcid.org/0000-0002-5379-847XMiftakhova N. K.2Kazan State Power Engineering UniversityKazan State Power Engineering UniversityKazan State Power Engineering UniversityTo improve the reliability of calculations of electric power losses in low-voltage electric networks, it is necessary to take into account the influence of the main parameters of electrical equipment. In the course of the study, a structural diagram and an algorithm for determining the equivalent resistance of the section of the shop network have been proposed; the main factors determining the equivalent resistance of the circuit (resistance of low-voltage switching devices, heating temperature of conductors, ambient temperature, equipment load factor) have been identified; graphical dependencies of the change in the equivalent resistance of the radial and trunk sections of the circuit on the mean square equipment load factor and the heating temperature of conductors have been shown. The total error in estimating the equivalent resistance when calculating without taking into account the main studied parameters of equipment for radial, trunk and mixed circuits is 40 % or more. The error in the results of calculations without taking into account the resistance of contact connections of switching devices can reach 80 %. The obtained dependencies of the equivalent resistance on the main parameters of the equipment are recommended for use to improve the reliability of estimating electric power losses in intra-plant electric networks.https://vestnik.mauniver.ru/show-eng.shtml?art=2246low-voltage networkpower lossescontact resistanceconductor heatingline loadingнизковольтная сетьпотери электроэнергиисопротивление контактовнагрев проводниковзагрузка линий |
| spellingShingle | Petrov A. R. Gracheva E. I. Miftakhova N. K. Improvement of the methodology for assessing power losses in in-plant power grids Vestnik MGTU low-voltage network power losses contact resistance conductor heating line loading низковольтная сеть потери электроэнергии сопротивление контактов нагрев проводников загрузка линий |
| title | Improvement of the methodology for assessing power losses in in-plant power grids |
| title_full | Improvement of the methodology for assessing power losses in in-plant power grids |
| title_fullStr | Improvement of the methodology for assessing power losses in in-plant power grids |
| title_full_unstemmed | Improvement of the methodology for assessing power losses in in-plant power grids |
| title_short | Improvement of the methodology for assessing power losses in in-plant power grids |
| title_sort | improvement of the methodology for assessing power losses in in plant power grids |
| topic | low-voltage network power losses contact resistance conductor heating line loading низковольтная сеть потери электроэнергии сопротивление контактов нагрев проводников загрузка линий |
| url | https://vestnik.mauniver.ru/show-eng.shtml?art=2246 |
| work_keys_str_mv | AT petrovar improvementofthemethodologyforassessingpowerlossesininplantpowergrids AT grachevaei improvementofthemethodologyforassessingpowerlossesininplantpowergrids AT miftakhovank improvementofthemethodologyforassessingpowerlossesininplantpowergrids |