LINETRAXX® NGRM750

The NGRM750 Neutral Grounding Resistor Monitor detects grounding-resistor failures and ground faults and monitors line voltages. It is intended for use in low-resistance grounded (LRG) commercial and industrial power systems. It is an advanced device that allows monitoring of :

• Current through the neutral-grounding resistor (NGR)
• Voltage between the transformer or generator neutral point and ground (voltage drop across the NGR)
• NGR failure (open), including failure of connections between neutral and ground
• Line-to-line and line-to-ground voltages