LINETRAXX® 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),
  • the condition of the NGR.

In order to meet the requirements of applicable standards, customised parameter settings must be made on the device to configure it for local equipment and operating conditions.

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LINETRAXX® NGRM500
LINETRAXX® 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),
  • the condition of the NGR.

In order to meet the requirements of applicable standards, customised parameter settings must be made on the device to configure it for local equipment and operating conditions.

问题? 联系我们!

特点

  • Determination of RNGR with passive and active measurement methods
  • Continuous monitoring of the RNGR even if the installation is de-energised;
  • Alarm or trip on ground fault
  • Monitoring of the current INGR
  • Monitoring of the voltage UNGR
  • Ethernet communication
  • Web server
  • Language selection (German, English GB and US, Spanish, French)
  • Test button (internal, external) with/without tripping
  • FFT analysis of the measuring signals
  • Pulser for manual ground fault location
  • Relay for detection of ground faults and resistor faults
  • Relay for shutdown of the installation after a configurable time
  • Can be combined with RCMS… for automatic shutdown of feeders
  • Graphical user interface
  • Wide supply voltage range
  • Range of use up to 2000 m AMSL
  • Fault/History memory
  • Analogue output of measured values (0…10 V, 4…20 mA, etc., selectable parameters)
  • Password protection
  • Tripping on RMS, fundamental component signal or harmonics
  • Detection of AC and DC ground faults

LINETRAXX® NGRM500 变体

TypeSupply voltage US / Frequency range HzArt. No.
NGRM500AC 48…240 V, 40…70 Hz
DC 48…240 V		B94013500

可选的附件，用于 LINETRAXX® NGRM500

CD-series coupling device

TypeVoltage UsysArt. No.
CD1000400…690 VB98039010
CD1000-2400…1000 VB98039053
CD50001000…4200 VB98039011
CD144004300…14550 VB98039054
CD2500014551…25000 VB98039055

Measuring current transformer

TypeVoltage/CurrentArt. No.
CTAC35
CTAC60
CTAS50
CTAS80
CTAS120		AC bis 30 AB98110007
B98110017
B98110009
B98110010
B98110011
CTUB103-CTBC35AC/DC bis 10 AB78120030
CTUB103-CTBC60
CTUB103-CTBC120		AC/DC bis 25 AB78120031
B78120032
CTB31…CTB51 seriesAC > 30…1000 AB980860xx

Voltage supply for measuring current transformers CTUB103…

Typemax. connected measuring current transformersArt. No.
STEP-PS/1 AC/24 DC/0.52B94053110
STEP-PS/1 AC/24 DC/1.757B94053111
STEP-PS/1 AC/24 DC/4.217B94053112

下载 LINETRAXX® NGRM500

类型命名尺寸语言时间戳D-/B-数量
CE 合格声明 NGRM 88.5 KB 2023/05/03 09:41:4903.05.2023 09:41:49
彩页 NGR Product Comparison 630.6 KB EN2022/07/18 16:05:0218.07.2022 16:05:02
手册 NGRM…-Modbus 453.9 KB DE2022/06/09 10:45:4109.06.2022 10:45:41D00292
手册 NGRM…-Modbus 443.2 KB EN2022/06/09 10:47:4409.06.2022 10:47:44D00292
技术信息 How to Size an NGR (US) 424.0 KB EN2019/05/13 10:31:3513.05.2019 10:31:35
技术规格书 NGRM500/NGRM550 1.2 MB DE2023/06/20 07:10:3020.06.2023 07:10:30D00373
快速启动 NGRM500/NGRM550 1.2 MB DE2022/12/02 11:08:2702.12.2022 11:08:27D00373
快速启动 NGRM500/NGRM550 1.5 MB EN2022/12/02 11:08:2802.12.2022 11:08:28D00373
手册 NGRM500/NGRM550 5.5 MB DE2022/12/02 11:07:2702.12.2022 11:07:27D00373
手册 NGRM500/NGRM550 5.4 MB EN2022/12/02 11:07:5302.12.2022 11:07:53D00373
技术规格书 NGRM500/NGRM550 1.2 MB FR2023/06/20 07:10:5220.06.2023 07:10:52D00373
技术信息 NGRM500 Guideform Specification (US) 141.3 KB EN2020/04/30 18:55:2730.04.2020 18:55:27
技术信息 NGRM500 Guideform Specifications 158.7 KB ES2020/05/22 13:33:1222.05.2020 13:33:12
手册 NGRM…-Modbus 463.4 KB ES2022/06/09 10:49:2509.06.2022 10:49:25D00292
技术信息 NGR Checklist (US) 245.3 KB EN2022/11/07 16:39:0207.11.2022 16:39:02
技术信息 Guideline on NGR/Safety Ground Monitoring 234.7 KB EN2019/09/20 13:52:3320.09.2019 13:52:33
技术信息 NGRM500 Retrofit Guide (US) 1.3 MB EN2021/02/10 20:59:2210.02.2021 20:59:22
技术信息 How to size an NGR (ES) 426.7 KB ES2021/05/26 11:31:0926.05.2021 11:31:09
技术信息 Guideline on NGRM Relay Testing 522.3 KB EN2021/10/26 18:41:5226.10.2021 18:41:52
产品样册 HRG & LRG Systems (US) 5.2 MB EN2020/03/05 21:02:3305.03.2020 21:02:33
彩页 Neutral Grounding Resistor Monitors (US) 343.7 KB EN2020/03/23 17:32:0023.03.2020 17:32:00
产品样册 Mining 11.7 MB ES2020/05/22 14:37:3122.05.2020 14:37:31
技术规格书 NGRM500/NGRM550 1.2 MB EN2023/06/20 07:10:4320.06.2023 07:10:43D00373
彩页 NGRM550 & NGRM750 630.6 KB EN2022/05/25 06:07:5225.05.2022 06:07:52