Die Aufgabe eines neutralen Erdungswiderstands ist die Begrenzung des maximalen Fehlerstroms. Dadurch werden mögliche Schäden und Gefahren eines Erdschlusses vermieden. Da das Netz technisch gesehen geerdet ist (daher auch Erdungswiderstand), können Schutzrelais wie gewohnt eingesetzt werden.
Die frühzeitige Erkennung einer Veränderung des Widerstandswertes ermöglicht es, Reparaturen im Vorfeld einzuplanen und auf bislang unerkannte Gefahren hinzuweisen.
Erdungswiderstands-Überwachungsgeräte messen Spannung, Strom und die unterbrechungsfreie Verbindung des neutralen Erdungswiderstands sowie die Spannung von Phase zu Erde. Diese Informationen helfen dabei, Instandhaltungsmaßnahmen zu planen und die Verfügbarkeit des Systems zu verbessern.
15 Products found
HRG Series 1 integrates a neutral-grounding resistor assembly
BHRG Series 2 HRG systems integrate a neutral-grounding resistor
Integrates a neutral-grounding resistor assembly with pulsing function and NGR monitoring
Monitor for use in high-resistance grounded systems
Monitor for use in low-resistance grounded systems
Monitor for use in high-resistance grounded systems
Monitor for use in low-resistance grounded systems
AC/DC sensitive measuring current transformer
Basic Neutral Grounding Resistor Monitor
Replacement kit for the discontinued and obsolete Federal Pioneer DSP-MKII and DSA systems
Coupling device for HRG applications up to AC 690 V and/or DC 400 V
Coupling device for HRG applications up to AC 1000 V and/or DC 690 V
Coupling device for HRG applications up to AC 25 kV and/or DC 14.5 kV
Coupling device for HRG applications up to AC 4300 V and/or DC 2500 V.
Coupling device for HRG applications up to a system voltage of 14400 V
HRG Series 1 integrates a neutral-grounding resistor assembly
BHRG Series 2 HRG systems integrate a neutral-grounding resistor
Integrates a neutral-grounding resistor assembly with pulsing function and NGR monitoring
Monitor for use in high-resistance grounded systems
Monitor for use in low-resistance grounded systems
Monitor for use in high-resistance grounded systems
Monitor for use in low-resistance grounded systems
AC/DC sensitive measuring current transformer
Basic Neutral Grounding Resistor Monitor
Replacement kit for the discontinued and obsolete Federal Pioneer DSP-MKII and DSA systems
Coupling device for HRG applications up to AC 690 V and/or DC 400 V
Coupling device for HRG applications up to AC 1000 V and/or DC 690 V
Coupling device for HRG applications up to AC 25 kV and/or DC 14.5 kV
Coupling device for HRG applications up to AC 4300 V and/or DC 2500 V.
Coupling device for HRG applications up to a system voltage of 14400 V