Methodology for the calculation and prediction of ampacity in overhead power lines, according to the choice of critical sites

摘要

Method for the calculation and prediction of the ampacity in overhead electric lines, which allows to increase the electric transport capacity of the overhead wires of the overhead lines, and which includes the steps of: - select the lines most likely to see their electric transport capacity increased; - carry out a microclimatic study, thus allowing to identify the zones of the line where it can produce less cooling of the conductor cable; - dispose at a point of those areas obtained through the microclimatic study, meteorological stations and current and temperature sensors of the driver; - after at least one year, perform the statistical studies of both the temperature records of the driver and of: effective wind, ambient temperature and solar radiation, thus obtaining the critical sections; - calculate the estimated ampacity by means of regulations, and apply to said ampacity a correction due to the maximum arrow of the line, and to the existing switchgear in the line; - calculate the surface temperature in the conductor cable estimated by regulations; - measure the surface temperature in the conductor cable with at least one temperature sensor; - carry out a study of the different correlations that exist between the error in the estimation of the driver's temperature and the variables that affect the calculation, and obtain the most critical correlations: - calculate the corrected temperature for each variable and condition of application; - predict meteorological variables for the calculation of short and medium term ampacity prediction. (Machine-translation by Google Translate, not legally binding)