Bender NGRM500 Quick Start Manual
  1. Manuals
  2. Brands
  3. Bender Manuals
  4. Measuring Instruments
  5. NGRM500
  6. Quick start manual
Bender NGRM500 Quick Start Manual

Bender NGRM500 Quick Start Manual

Neutral grounding resistor monitor
Hide thumbs Also See for NGRM500:
1
2
3
4
5
6
7
8
Table of Contents

Advertisement

Quick Links

Download this manual
NGRM500
Neutral grounding resistor monitor
NGRM500_D00373_03_Q_XXEN/03.2020
Quick-start guide EN

Advertisement

Table of Contents
loading

Related Manuals for Bender NGRM500

Summary of Contents for Bender NGRM500

  • Page 1 NGRM500 Neutral grounding resistor monitor NGRM500_D00373_03_Q_XXEN/03.2020 Quick-start guide EN...

  • Page 2: Intended Use

    NGRM500 Intended use 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), •...

  • Page 3: Star Configuration

    NGRM500 Connection X1 Pulser IN Reset IN Test IN Modbus RTU (A) Modbus RTU (B) Ground Analogue output Open Collector: Pulser OUT Open Collector: System health Output for supply of external relays (+24 V, max. 100 mA) Star configuration Circuit breaker (for tripping systems) The "N"...
  • Page 4 W1-S35…W5-S210 Bender CT W...AB W... AN420 CTUB103 W...S... 24 V S1(k) S2(l) NGRM500: 50 mA NGRM500: 50 mA NGRM500: 5 A CT: Terminal k NGRM500: C NGRM500: C NGRM500: C CT: Terminal l AC/DC Measuring current transformer connection (W…AB) 50 mm 1.97 in...

  • Page 5: Menu Structure

    NGRM500 Menu structure 1. Data meas. values , Method, R NGR rel sense, rms rel rms rel, fund fund rel fund fund rel, harm harm rel harm harm rel, 2. Harmonics 3. History History, Delete 4. Pulser Pulser, t Impuls 5.
  • Page 6 NGRM500 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: Initial Measurement

    NGRM500 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

    Bender GmbH & Co. KG Londorfer Straße 65 • 35305 Grünberg • Germany 800.243.2438 / 905.602.9990 • info@bender-ca.com Tel.: +49 6401 807-0 • info@bender.de • www.bender.de www.bender-ca.com USA, Mexico, Central America • Exton PA, USA South America • Santiago de Chile 800.356.4266 / 610.383.9200 •...

Table of Contents