MONITORING SYSTEM lightning discharge on overhead lines with improved selectivity and accuracy of lightning discharge PLACES

摘要

The invention relates to electric power and can be used to provide timely information on the storm situation and intensity of storm activity on the slopes of high-voltage overhead power lines (VL).; The technical result of the proposed utility model is to improve the accuracy, reliability, noise immunity. The technical result is achieved in that the system for monitoring lightning in overhead power lines with improved selectivity and accuracy of determining the place of the lightning discharge, comprising at least one pair of registers lightning arrester installed on both ends of the controlled lines, each of registers is provided with a receiver accurate time signals and adapted the possibility of fixing the values ​​of the current time and recording digitizing the corresponding sensor, each output signal minutes recorder connected to the corresponding sensor lightning overvoltages, characterized in that it further comprises a correlator (correlometer, correlatograph) to calculate a correlation function between the signals received from the overvoltage sensor.; The system may further comprise an adjustable delay line between the signals. The system may further comprise a memory device for recording signals. The correlator can be implemented on a microprocessor. The correlator can be implemented in an analog multiplier.; The technical result - an increase of accuracy is achieved in that the correlation function is less sensitive to interference, which allows to specify the time of the event and the signal delay by lightning strike position to the sensor and an associated registrar that will more accurately define the distance between the sensor and lightning. The technical result - increasing the reliability of the system is achieved by the fact that it is possible to filter out interference, which will reliably and unambiguously determine the location of a lightning strike. The technical result - an increase of noise immunity is achieved by a high selectivity of the correlation function.; The utility model can be successfully applied in the production of event monitoring systems, including lightning strikes on overhead power lines.