Planning a Protection Coordination System Against Over Current Relays and Ground Fault Relays Using the NN Method

PT PAMA PERSADA is one of the power plants located in Kalimantan, Barunang which has 2 feeders. In feeders, protection coordination often occurs. These disturbances can hamper performance company PERSADA. This turned out to be a disturbance types overcurrent relays and ground fault relays. Where end it takes an evaluation analysis relay setting using Electrical Transient Analysis Program (ETAP) 19.0.1 software on electrical system. The that occurs feeder divided into KM30 Parilahung substations. because trips work simultaneously. From results ETAP simulation, value 4.164 KW, reactive 780.3 KVAR, apparent 4.237 KVA, cos phi used 0.9. Meanwhile, meets IEEE 60255 standard with grading time 0.2 – 0.6 second. After being successfully simulated software, was continued Matlab as optimization settings use working effect NN (Neural Network) method. accordance MSE (Main Square Error) reached 0.33452.