NGRM700 Intended use The NGRM700 is only intended for use in high-resistance grounded systems. In these systems, the NGRM700 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), •...
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W35…120AB W20…120 CTB31…41 Type W1-S35…W5-S210 Bender CT W... W...AB W...S... AN420 NGRM700: 50 mA NGRM700: 50 mA NGRM700: 5 A CT: Terminal k NGRM700: C NGRM700: C NGRM700: C CT: Terminal l AC/DC measuring current transformer connection (W…AB) 50 mm 1.97 in...
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NGRM700 Menu structure , Method, R NGR rel sense, rms rel rms rel, fund 1. Data meas. values fund rel fund fund rel, harm harm rel harm harm rel, L1L2 L2L3 , f, U L3L1 1-E rms 2-E rms 3-E rms 2.
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NGRM700 Recommended minimum value R (tripping level 50 %) Temperature range –40…+70 °C, field calibration at 25 °C (Values shown in brackets: Limited temperature range 0…+40 °C, field calibration at 25 °C) CD1000/CD1000-2 CD1000-2 CD5000 CD14400 CD25000 400 V 600 V...
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NGRM700 Language (8.2) Select RNGR nom (8.8) Date (8.3) CT primary (8.9) Time (8.4) CT secondary (8.10) Usys L-L (8.5) System voltage CT connection (8.11) 50 mA or 5 A Frequency (8.6) 50 or 60 Hz Field calibration (8.12) Start or do not start INGR nom (8.7)
Nachdruck und Vervielfältigung Reprinting and duplicating nur mit Genehmigung des Herausgebers. only with permission of the publisher. Bender GmbH & Co. KG Bender GmbH & Co. KG Postfach 1161 • 35301 Grünberg • Deutschland PO Box 1161 • 35301 Gruenberg • Germany Londorfer Str.
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