Neutral Grounding Resistance (NGR) Monitoring
The idea of a neutral grounding resistor is to limit the maximum fault current in order to avoid damages and hazards caused by ground faults. Since the system is technically grounded (e.g. High Resistance Grounding) protective relays will work properly.
Early detection of a change in the NGR value provides the ability to plan repair and indicates previously unknown hazards.
Neutral Grounding Resistor Monitors measure voltage, current, continuity of the NGR connection and phase-to-ground voltage. This information helps to plan maintenance and enhance system availability.
10 Products found
LINETRAXX® NGRM500
Monitor for use in high-resistance grounded systems
LINETRAXX® NGRM550
Monitor for use in low-resistance grounded systems
LINETRAXX® NGRM700
The advanced Neutral Grounding Resistor Monitor for sophisticated applications
LINETRAXX® NGRM750
Monitor for use in low-resistance grounded systems
LINETRAXX® CTUB103
AC/DC sensitive measuring current transformer
CD1000
Coupling device for HRG applications up to AC 690 V and/or DC 400 V
CD1000-2
Coupling device for HRG applications up to AC 1000 V and/or DC 690 V.
CD25000
Coupling device for HRG applications up to AC 25 kV and/or DC 14.5 kV
CD5000
Coupling device for HRG applications up to AC 4300 V and/or DC 2500 V.
CD14400
Coupling device for HRG applications up to a system voltage of 14400 V
LINETRAXX® NGRM500
Monitor for use in high-resistance grounded systems
LINETRAXX® NGRM550
Monitor for use in low-resistance grounded systems
LINETRAXX® NGRM700
The advanced Neutral Grounding Resistor Monitor for sophisticated applications
LINETRAXX® NGRM750
Monitor for use in low-resistance grounded systems
LINETRAXX® CTUB103
AC/DC sensitive measuring current transformer
CD1000
Coupling device for HRG applications up to AC 690 V and/or DC 400 V
CD1000-2
Coupling device for HRG applications up to AC 1000 V and/or DC 690 V.
CD25000
Coupling device for HRG applications up to AC 25 kV and/or DC 14.5 kV
CD5000
Coupling device for HRG applications up to AC 4300 V and/or DC 2500 V.
CD14400
Coupling device for HRG applications up to a system voltage of 14400 V