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NGRM700
NGR Monitor
P/N: B94013700
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Determination of RNGR with passive and active measurement methods
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Continuous monitoring of the RNGR even if the installation is de-energised;
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Alarm or trip on ground fault
Description
The NGRM700 is only intended for use in high-resistance grounded systems. In these systems, the NGRM700 monitors
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the current through the neutral-grounding resistor (NGR),
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the voltage between the star point of the transformer and earth (voltage drop across the NGR),
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the condition of the NGR, line-to-line and line-to-earth voltages.
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