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Reply To: Machine Riddle No.5 – Power Swing Problem

#1368
AMIR KHASHAYAR

    Apparently ,the neutral point of 20 KV system has been grounded via 46 ohm resistance and in principle , if the neutral point to be grounded through resistance , in case of earth fault current it will fluctuate over earth and will take voltage. But on the other hand 46 ohm is considered as low impedance and doesn’t seem to present very severe fluctuation.