Neutral Ground Resistor Wiring Diagram. The short form of ngr is neutral grounding resistor. The line to neutral voltage will be 416 kv 3 2400 v.
By margaret byrd november 15 2018. Between the neutral and the ground side of the resistor should be within 10 of the nameplate value. The se 325 is a neutral grounding resistor monitor for resistance grounded systems up to 25 kvac.
By admin november 10 2017.
Neutral grounding resistors ngrs are used to limit the fault current and ensure safety of equipment and personnel in industrial systems. Neutral grounding resistor ground fault relay r ct inct inct out y ct out b ct st upto ct in spike protection box sensor earth ip supply 110vac from primary nc primary earth n 110 vcno ct in ct outct out s1s2 secondary s2 r yb ngr s1 wiring diagram of neutral grounding resistor ground fault relay voltagecurrent set. The required resistance will be 2400 400 6 ohms. Ners sometimes called neutral grounding resistors are used in an ac distribution networks to limit transient overvoltages that flow through the neutral point of a transformer or generator to a safe.