APPARATUS AND METHOD FOR MONITORING AN ELECTRIC POWER TRANSMISSION SYSTEM THROUGH PARTIAL DISCHARGES ANALYSIS

摘要

Method for monitoring partial discharges in an electric power transmission system comprising the steps of : - detecting electric pulses from a component of the electric power transmission system; repeating a battery of different tests adapted to provide each a result indicative of partial discharge activity, said tests being continuously performed in succession one after the other in a preset period of time, comprising each a set of operations of acquisition and evaluations of the detected electrical pulses, and differing each other for a plurality of different combinations of values taken by test parameters used for executing the acquisition and evaluation operations; analyzing the results obtained with time by the batteries of tests executed at different execution times in said preset period of time; and - generating an alarm depending on the outcome of the analysis step.