Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
742 9 |
Ultima descărcare din IBN: 2022-08-10 08:55 |
Căutarea după subiecte similare conform CZU |
621.315.17 (8) |
Electrical engineering (1154) |
SM ISO690:2012 БАСМАНОВ, Владислав, ХОЛМАНСКИХ, Валерий. Выбор периодичности оценки технического состояния воздушных линий 6–10 кВ по результатам статистических исследований их надежности. In: Problemele Energeticii Regionale, 2020, nr. 4(48), pp. 23-34. ISSN 1857-0070. DOI: https://doi.org/10.5281/zenodo.4316637 |
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Problemele Energeticii Regionale | ||||||
Numărul 4(48) / 2020 / ISSN 1857-0070 | ||||||
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DOI:https://doi.org/10.5281/zenodo.4316637 | ||||||
CZU: 621.315.17 | ||||||
Pag. 23-34 | ||||||
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The aim of this work is to justify a criterion selection for the frequency estimation of the 610 kV-overhead lines’ technical condition (OL), using the reliability indicators of the overhead lines (failure intensity, mean time between failures, reconditioning intensity and recovery mean time). To achieve the goal a retrospective method was used for obtaining information on reliability and a statistical method for analyzing the reliability of the multiple-action products to justify the frequency criterion. Certain methods of mathematical statistics were applied to process the information obtained. In particular, the Kolmogorov criterion was used to support the hypothesis on the exponential law of distribution of the OL failures and the time of their recovery. Based on the analysis of the 6-year overhead line failures database, the exponential law hypothesis of distribution of the overhead line failures and the time of their recovery was accepted and confirmed. The most essential result is the experimental and theoretical confirmation that the complex indicator of reliability, i.e., the technical preparedness coefficient with account of self-eliminating failures, can be used as the frequency criterion for verification of the OL technical condition. High precision of the criterion has been proved even at a small number of failures. Significance of the results obtained consists in that, while controlling the dynamics of the coefficient and comparing it with the normative values with respect to the OL reliability category, it is possible in due time to fix a date for the OL technical condition checking. |
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Cuvinte-cheie overhead lines, technical availability factor, Kolmogorov criterion, criterion for the frequency of assessing overhead lines, mathematical model of reliability, linii aeriene, factor de pregătire tehnică, criteriul Kolmogorov, criteriu pentru frecvența diagnosticării liniilor aeriene, model matematic de fiabilitate, indicator complex de fiabilitate, воздушные линии, коэффициент технической готовности, критерий Колмогорова, критерий периодичности диагностики воздушных линий, математическая модель надежности, комплексный показатель надежности |
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