Open AccessECONOMIC DAMAGE ASSESSMENT METHODOLOGY IN CASE OF TRANSFORMER LOAD RATIO DEVIATION
Author(s) -
А. С. Луковенко
Publication year - 2021
Publication title -
vestnik sgasu. gradostroitelʹstvo i arhitektura
Language(s) - English
Resource type - Journals
ISSN - 2304-0491
DOI - 10.17673/vestnik.2021.03.22
Subject(s) - load factor , transformer , power factor , reliability engineering , electricity , effi , automotive engineering , mathematics , computer science , engineering , electrical engineering , structural engineering , voltage , database
The aim of the study is to develop a methodology for assessing economic damage when the transformer load factor deviates. In the process of research, a method was used to determine the optimal load of a power transformer. A method for assessing economic damage in case of a deviation of its load factor has been developed. The optimal load factor of a power transformer has been determined according to the criterion of the minimum cost of money for the transformation of electrical energy. The load level of power transformers can be assessed by two criteria: by the maximum integral value of the effi ciency and by the minimum loss of money during the transformation of electricity. According to the proposed methodology, the assessment of damage is carried out when the load factor of the transformer deviates from the optimal values, for which the relative losses of electrical energy are calculated. The results obtained when evaluating energy and fi nancial and economic effi ciency show that when the load factor is overestimated relative to the optimal values, it is much more preferable to overestimate than underestimate. The reliability of the results is confi rmed by the satisfactory agreement of the calculated results with the experimental data obtained at the operating power plant.