Integrity Monitoring Devices

CD25000

The CD25000 is intended for use with an NGRM… NGR monitor only. The CD25000 can be used in HRG systems with a system voltage up to ULL = 25 kV (UNGR = 14.5 kV). The maximum operating altitude is 5000 m above mean sea level.

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CD14400

The CD14400 can be used with an NGR monitor in HRG systems with a system voltage ULL up to 14.4 kV (UNGR = 8.4 kV). The maximum operating altitude is 5000 m above mean sea level.

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CD5000

The CD5000 can be used with an NGR monitor in HRG systems with a system voltage ULL up to 4300 V (UNGR ≤ 2500 V). The maximum operating altitude is 2000 m above mean sea level.

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CD1000-2

The CD1000-2 can be used with an NGR monitor in HRG systems with a system voltage ULL up to 1000 V (UNGR ≤ 600 V). The maximum operating altitude is 5000 m above mean sea level.

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CD1000

The CD1000 can be used with an NGR monitor in HRG systems with a system voltage ULL up to 690 V (UNGR ≤ 400 V). The maximum operating altitude is 2000 m above mean sea level.

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NGRM700

The NGRM700 is an advanced device that allows continuous NGR monitoring to provide all necessary information of the system grounding. The NGRM700 monitors the resistance value of the Neutral Grounding Resistor (NGR) and the fault current flowing through the NGR in High Resistance Grounded (HRG) systems.

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NGRM500

The NGRM500 is only intended for use in high-resistance grounded systems. In these systems, the NGRM500 monitors: the current through the neutral-grounding resistor (NGR), the voltage between the star point of the transformer and earth (voltage drop across the NGR) and the condition of the NGR.

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