NOVEL METHOD FOR REAL TIME TESTS AND DIAGNOSIS OF THE SOURCES OF PARTIAL DISCHARGE IN HIGH VOLTAGE EQUIPMENT AND INSTALLATIONS, WHICH ARE IN SERVICE OR NOT IN SERVICE, AND PHYSICAL SYSTEM FOR THE PRACTICAL USE OF THE METHOD.

摘要

The invention relates to a method for detecting events associated with partial discharges (PDs) in high voltage equipment and installations, able to diagnose isolation status in real time by using PD signal noise discrimination by means of the parallel use of multiprocessors, which are additionally used for the discrimination, also in real time, of different PD sources located in a single position or in different positions. In order to identify the various PD sources, three-dimensional groups are formed using the coordinates of three parameters characteristic of each pulse: the parameter associated with the time of the impulse front, the parameter associated with the tail time and the parameter associated with the pulse frequency. The diagnostic method can be performed with grid voltage or independent generators as a voltage source, and the invention particularly relates to a novel voltage source designed therefor. The invention likewise relates to a system for the implementation of the method, which includes the means of capturing PDs, and the necessary analysis and measurement.