The feeder power lines were underground cable lines 3C500XP2, overhead lines 3A477XPW, and 3C100 mm 2 . Table 1 shows the bus loading during peak condition. The two wind turbines installed at Bus B9 had two syn- chronous power generators interfaced two SPCs with a rating of 2300 kW each. Subsequently, the output of SPCs were connected to the step-up transformer with a 0.4/11.4 kV voltage ratio.