Neutral Voltage Protection -59GN: Neutral Voltage Protection is used to protect the alternator/generator stator winding from stator earth fault. Most commonly, the generator’s neutral point is connected to ground through a resistor (NGR or NGT) to limit the fault current. during Normal condition, the secondary voltage across neutral grounding transformer is less and approximately zero. … Continue reading Neutral Voltage Protection -59GN- 95% stator Earth fault protection