The report provides engineering details covering possible wind farm electrical layouts, equipment ratings, system grounding, transformer connections and characteristics, harmonics and sub-harmonics analysis, voltage and frequency ride-through requirements, and protective relay. The report provides engineering details covering possible wind farm electrical layouts, equipment ratings, system grounding, transformer connections and characteristics, harmonics and sub-harmonics analysis, voltage and frequency ride-through requirements, and protective relay. This study delves into the grid integration of a wind farm comprising six Wind Turbine Generators (WTGs) and places a specific emphasis on load flow analysis to assess voltage profiles across various buses, as well as Active and Reactive Power flow characteristics. Furthermore, the research. Working group C25 was given the assignment to write a report to provide guidance on present relay protection and coordination practices at Wind-powered Electricity generating Plants (WEP). Thereby, the main objective is to keep wind turbines connected to the grid and to regulate the reactive power and voltage level during. Generic Object-Oriented Substation Event (GOOSE) messaging for lockout and breaker failure (BF) functions. Compared to traditional I/O required for lockout relaying, arts of the IEC 61850 standard replace other traditional substation functions with Ethernet communications.