TINJAUAN KINERJA RELAY DIFFERENSIAL GT 322.1 MTA UNIT 2.1 PLTGU MUARA KARANG

In a system of gas and steam power plants, there are several factility, equipment reliability, security systems, loading conditions a has a total power of 909 MW requires a reliable, safe, selective, of interference so that the fulfillment of electricity needs continue generator transformer that works based on the current balance surement and protection component to compare the secondary cT must be zero , so that if a disturbance occurs on the relay trelay time for other relays to work. For this reason,it is necess the ideal CT ratio selection obtained from the calculation of the 00/1 HV with erroneis match obtained at 0.826% for LV side andith a maximum erroneism of 5% based on PLN standards. Afterrent are obtained, the values of which are 0.1788 A and 1.332 A.