IMPROVING THE METHOD FOR DETERMINING SPECIFIC FREQUENCY OF ELECTRICITY SUPPLY FAILURES FOR AGRICULTURAL CONSUMERS

Abstract

The authors consider and analyze means and methods of improving the reliability of rural distribution networks. The paper discusses various means of improving reliability, systematized according to various criteria: by the method of increasing the technical and economic efficiency of power supply, the place of installation in the power grid, the mode of operation of the power supply system and the functional purpose. Additionally, a diagram of technical means to increase the reliability of power supply to consumers is presented. The analysis results in a conclusion that the considered methods for calculating the reliability indicators of power supply to consumers are not accurate enough and, therefore, this makes it difficult to make the right decision in practice to ensure the required reliability level of power supply to consumers. The authors present improved methodology for determining the specific frequency of power supply failure of agricultural consumers and provide the rationale for factors affecting this condition. In the improved methodology, the failure rate is a non-stationary value, depending on the type of electrical equipment,the means of improving reliability, climatic conditions, the year of commissioning, the year of major repair, reconstruction and, the estimated year, which significantly increases the analysis accuracy.