Implementación de un sistema de protección mediante el uso de RELÉ SEL-551 contra sobrecorrientes en una red de media tensión

Abstract

In this work an overcurrent protection was implemented with the SEL-551 relay device and with the Omicron CMC 356 test equipment for a medium voltage network, applied in the module "Module of overcurrent protections for medium voltage feeders" which is located within the facilities of the Salesian Polytechnic University in the headquarters of Guayaquil, where it was necessary to develop the different practices for the benefit of students and professionals who require information for the coordination of protection through the use of SEL-551 relay within the career of Electrical Engineering. Among the results was demonstrated through the protection curves, the reaction times of the device, additionally allowed to have a record of the correct use of the relay through its software “AcSELerator Quickset” and the test equipment injecting a fault current confirming the configured parameters of the relay act within the set range. At the same time, quick guides for the correct use of the software “AcSELerator Quickset”, established relay connections together with the Omicron test device, and knowledge of the software “Universal Test 4. 0” in the user recognition part and test settings in the overcurrent section are provided.