Measurement Monitoring Possibility of 6/10 kV Cable Lines Insulation State on the Instantaneous Power Analysis

Today, electricity is an integral society part, so energy timely supply is necessary. One of the production system main elements is the electric cable line, which, due to its length, is most affected by both external factors and internal processes. An electric line is a complex object for changes detailed monitoring in parameters along its entire length, and therefore determining the line state line is reduced to measuring the voltage and current indicators at the line ends. To monitor cable lines, various processes are used, such as impulse processes, to observe reflected waves from heterogeneous formations, to evaluate changes in parameters in the line, analyzing methods PLC signals, and complex neural networks. But in order to improve the line control quality, it is necessary to understand in more detail the principle of influence of changes in the line and how they differ depending on their formation place. This paper examines the changes influence in capacitance and capacitive conductivity depending on their formation place. The results obtained analysis on the built model is performed using the wavelet transformation method, which provides the processes localization detailed picture both in terms of frequency and time. Observations are made at low and high frequencies to determine the difference in impact at different ranges.