Bender NGRM700 Manual
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Bender NGRM700 Manual

Bender NGRM700 Manual

Neutral grounding resistor monitor
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NGRM700
Neutral grounding resistor monitor
NGRM700_D00292_03_Q_XXEN/09.2019
Quick-start guide EN

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Summary of Contents for Bender NGRM700

  • Page 1 NGRM700 Neutral grounding resistor monitor NGRM700_D00292_03_Q_XXEN/09.2019 Quick-start guide EN...

  • Page 2: Safety Instructions

    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), •...
  • Page 3 NGRM700 Dimension diagram NGRM700 and FP200-NGRM 135,5 5,33 65,5 2,58 35,6 1,40 5,67 2,83 0,23 Mounting position 55.50 2.19 61.40 2.42 63.35 2.49 0.12 0.236 223.50 8.80 4.92 66+0.5/-0 mm* 5.91 2.60+0.02/-0 in* 8.07 8.31 9.06 9.65 * IP 65: 68+0.7/-0 mm...
  • Page 4 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...
  • Page 5 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.
  • Page 6 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...
  • Page 7 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)

  • Page 8: Factory Settings

    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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