Wind farm fault protection saves upgrading equipment costs Case Study 38kV current limiting protectors mounted at the utility grid substation protects the utility from potential wind farm faults and the wind farm from potential utility faults. © 2019 G&W ELECTRIC GWCS01-2019 05/19 Challenge A new wind farm was being constructed in the Central Midwest. The design was for 240 wind turbines with the goal of 400 MW of total capacity. The project was scheduled to be done in two phases with roughly half of the capacity in each phase. When fully operational, the wind farm would provide renewable energy to almost 120,000 homes. The wind farm was designed, the work was planned, and the equipment was ordered for the first 121 turbines of the project. Coincidentally, during that time, the u

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