The objective of power system protection is to protect components of power systems without leaving any component unprotected. Protective equipment in the system should be capable of minimizing the damage when a failure occurs and should also minimize service interruption time. This can be achieved by proper protection coordination of protective device installed in a distributed system. The penetration of Distributed Generation (DG) to meet the increasing demand for the uninterrupted power introduces several technical issues in operation of system which includes protection coordination issues. In this paper, the effect of DG integration on overcurrent relay protection coordination is considered. Overcurrent protection in the presence of Distributed Generation in an IEEE 13 node radial test feeder is achieved with and without Distributed Generation for a single line to ground fault. The problem maloperation of relays during fault conditions in the existence of Distributed Generation can be solved by adding directional feature to the existing static overcurrent relays and by changing the relay settings. The overcurrent protection coordination is simulated using ETAP software.