Análisis de las funciones de protección de sobrecorriente, distancia y diferencial en el software emtp-rv: análisis de la función de protección de sobrecorriente en el sotware emtp-rv.

Abstract

The present work presents the coordination of overcurrent relays in a selected test system, using the EMTP-RV software. In the first instance, a bibliographic review of the operation and calibration of the indicated protection is carried out, as well as the revision of user manuals of both the DIgSILENT PowerFactory software and the EMTP-RV software. Then, based on the literature reviewed, the electrical test system was defined and modeled in which the overcurrent protection was analyzed with its corresponding case studies, applying adjustment criteria obtained from the technical literature for each modeled relay. These activities were carried out in the two programs mentioned, and by contrasting the results and the procedure used, advantages and disadvantages of each software were identified from the point of view of the use and analysis of overcurrent protection. Based on the above, the collection of information associated with overcurrent protection, its modeling and simulation in the EMTP-RV and PowerFactory programs of DIgSILENT and the respective analysis of the results obtained are contemplated.For this purpose it is important to know that one of the most common phenomena that occur during disturbances in an electrical power system, and especially in short circuits,is the increase in current above the normal operating values, which motivates the analysis of overcurrent protection in this work, this increase in current is used to decriminalize the occurrence of electrical failures in the network, causing the operation of the selected protection either as main protection or backup.