Methodology and system for the detection of ferroresonance in transformers by analyzing their noise and / or vibrations

摘要

Method of premature detection of ferroresonance in transformers of the power grid by analyzing signals produced by magnetostriction from said transformers, such that the method is configured to prevent future damage to transformers and other elements of the line resulting from the generated overcurrent, and includes the steps of: installing a sensor suitable for measuring the signals; carry out previous calibration tests of the sensors; obtain the standard values of the signals; start a campaign of real-time measures until obtaining the effective value (RMS) in real time; compare the effective values (RMS) obtained in real time with the standard values of the different events. System for the premature detection of ferroresonance in a transformer of the electrical network by measuring signals produced by magnetostriction from said transformer, comprising: a transformer, sensor for the measurement of signals produced by magnetostriction from the transformer and a data acquisition system connected to the sensor.