Análisis de las funciones de protección de sobrecorriente, distancia y diferencial en el software EMTP: análisis de la protección diferencial en el software EMTP.

Abstract

This paper describes the adjustment procedure of the differential relay used to protect a power transformer, using the EMTP-RV software for it. For which, using a test system, the simulation of the operating scenarios that determine the proper functioning of this protection has been conducted. Based on the results obtained and based on the adjustment criteria of the differential relay, the appropriate configuration for its operating characteristic is established; seeking to comply with the properties of the protection systems. And considering that the PowerFactory software is the one commonly used to adjust protections in power systems, the adjustment was also made in the latter; this in order to establish the possible advantages and disadvantages that the use of each of the two programs implies.