2.4kV - 15kV Neutral Grounding Resistors (NGR's)

Neutral Grounding Resistors and Reactors have “low impedance grounding.” They will reduce the stress and amount of damage to your power system equipment. They do this by controlling the magnitude of the ground fault currents. When used in generator neutral, these devices will also limit the amount of the generator available Line to Neutral fault current below the design limits. These limits are set by the NEMA MG1 generators design standard.

Neutral Grounding Resistors and Reactors will reduce the magnitude of harmonic currents. They will also help switchgear sense that there is current in neutral/ground. The NGR’s help dissipate that current.