Abstract:
Generators are the most superior unit in power system, it consists of several parts such as stator, rotor and DC excitation system, each one of these parts must be protected from abnormal condition and faults. Several of protection functions and principles must be discussed and understand for strong generator protection schema. Generator protection schemes for GARRI 4 were carried out by collecting by collecting generator and protection data from the station, for analyzing these schemes and their calculations then simulating those using ETAP program and protection relays. Different scenarios of abnormal conditions and faults were created by using ETAP simulation to study and analyses. Same thing is said to protection relay, different current and voltage values were injected to simulate the abnormal conditions in order to display the relay response time. GARRI 4 generator protection system were studied and simulate.
