Subestacíon eléctrica

Operating transformer stations safely

Control voltage

High availability starts with a reliable supply

Control voltage circuits must be monitored for electrical safety; after all, an undetected electrical fault is as significant as unexpected system downtime and also significantly increases the fire risk. At the same time, unplanned service interventions can be expensive and time-consuming. Some transformer station insurers also demand effective condition monitoring systems. The Bender condition monitoring system gives you a clear overview of all the relevant data for your system.

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Voltage monitoring

Monitoring of three-phase AC systems

The VMD258 analog voltage relay monitors three-phase AC systems for under and overvoltage (window function). It does not need a neutral point connection and is therefore suitable for all 3AC systems. The supply voltage of the electronics is taken from the system to be monitored. The supply for the electronics, the relays and the connection for the external energy store are separated from the system with dual insulation. Special input transformers muffle the transfer of interference factors from the system. The response values for under and overvoltage and for response delays can be adjusted to any level.

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Downloads

NameCategorySizeLanguageTimestampD-/B-Number
EDS309x Datasheets 717.2 KB EN2019/05/1313.05.2019D00012
Power Quality/Measuring and monitoring relays Product Overviews 2.7 MB EN2022/05/2525.05.2022
Product Overview ISOMETER®/ISOSCAN® Product Overviews 5.3 MB EN2024/02/1616.02.2024
Product Overview - Residual Current Monitoring Product Overviews 6.2 MB EN2023/11/0909.11.2023
Power Quality Flyers 468.0 KB EN2022/12/1414.12.2022
Power Plants Market Segment Brochures 3.8 MB EN2021/04/1515.04.2021
Insulation Fault Location - Planning and Setup Technical Article 112.4 KB EN2019/05/1313.05.2019
Where Residual Current Technology Meets the IT System Technical Article 353.8 KB EN2019/05/1313.05.2019
Electrical Safety in Control and Auxiliary Circuits Technical Article 632.6 KB EN2023/04/2121.04.2023

Products

Measuring and monitoring relays

LINETRAXX® VMD258
LINETRAXX® VMD258

Undervoltage/overvoltage relay for monitoring three-phase AC systems (window discriminator function)

Ground-Fault Monitoring, Ungrounded

ISOMETER® iso685…
ISOMETER® iso685 Series

Ground-fault detector for ungrounded AC/DC systems

ISOMETER® IR425-D4
ISOMETER® IR425-D4

Ground-fault monitoring device for ungrounded AC/DC control circuits

Ground-Fault Location, Ungrounded

ISOSCAN® EDS440
ISOSCAN® EDS440 Series

Ground-fault location module for ungrounded AC/DC systems

ISOSCAN® EDS441
ISOSCAN® EDS441

Ground-fault locator for localization of ground faults in control circuits

ISOSCAN® EDS460-D
ISOSCAN® EDS460-D

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

ISOSCAN® EDS461-D
ISOSCAN® EDS461-D

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

ISOSCAN® EDS460-L
ISOSCAN® EDS460-L

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

ISOSCAN® EDS461-L
ISOSCAN® EDS461-L

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

ISOSCAN® EDS490-D
ISOSCAN® EDS490-D

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

ISOSCAN® EDS491-D

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

ISOSCAN® EDS490-L
ISOSCAN® EDS490-L

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

ISOSCAN® EDS491-L
ISOSCAN® EDS491-L

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

ISOSCAN® EDS460-DG
ISOSCAN® EDS460-DG

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

ISOSCAN® EDS150
ISOSCAN® EDS150

Ground-fault locator with 6 integrated measuring current transformers for localization of ground faults in main circuits

ISOSCAN® EDS151
ISOSCAN® EDS151

Ground-fault locator with 6 integrated measuring current transformers for localization of ground faults in control circuits

ISOSCAN® EDS30…
ISOSCAN® EDS3090 Series

Portable ground-fault location systems for ungrounded and grounded systems

Ground-Fault Monitoring for Grounded Systems

LINETRAXX® SmartDetect RCMS410

Four-channel DC, AC and pulse current sensitive residual current monitor for earthed AC, AC/DC and DC systems

LINETRAXX® RCMS460-D
LINETRAXX® RCMS460-D Blindspot®

Multi-channel AC/DC ground-fault monitor

LINETRAXX® RCMS460-L
LINETRAXX® RCMS460-L Blindspot®

Multichannel AC, pulsed DC and AC/DC sensitive ground-fault monitor

LINETRAXX® RCMS490-D
LINETRAXX® RCMS490-D Blindspot®

Multi-channel AC/DC ground-fault monitor with individual relay outputs

LINETRAXX® RCMS490-L
LINETRAXX® RCMS490-L Blindspot®

Multichannel AC, pulsed DC and AC/DC sensitive ground-fault monitor with one alarm contact per channel

Power Quality

LINETRAXX® PEM353

Universal measuring device with numerous measured quantities, energy and power measurement with storage, Power Quality Monitoring, limit value monitoring with alarm forwarding

Current Transformers

LINETRAXX® CTUB100 Series

AC/DC sensitive measuring current transformer (Type B)

Measuring and monitoring relays

LINETRAXX® VMD258
LINETRAXX® VMD258

Undervoltage/overvoltage relay for monitoring three-phase AC systems (window discriminator function)

Details

Ground-Fault Monitoring, Ungrounded

ISOMETER® iso685…
ISOMETER® iso685 Series

Ground-fault detector for ungrounded AC/DC systems

Details
ISOMETER® IR425-D4
ISOMETER® IR425-D4

Ground-fault monitoring device for ungrounded AC/DC control circuits

Details

Ground-Fault Location, Ungrounded

ISOSCAN® EDS440
ISOSCAN® EDS440 Series

Ground-fault location module for ungrounded AC/DC systems

Details
ISOSCAN® EDS441
ISOSCAN® EDS441

Ground-fault locator for localization of ground faults in control circuits

Details
ISOSCAN® EDS460-D
ISOSCAN® EDS460-D

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

Details
ISOSCAN® EDS461-D
ISOSCAN® EDS461-D

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

Details
ISOSCAN® EDS460-L
ISOSCAN® EDS460-L

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

Details
ISOSCAN® EDS461-L
ISOSCAN® EDS461-L

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

Details
ISOSCAN® EDS490-D
ISOSCAN® EDS490-D

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

Details
ISOSCAN® EDS491-D

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

Details
ISOSCAN® EDS490-L
ISOSCAN® EDS490-L

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

Details
ISOSCAN® EDS491-L
ISOSCAN® EDS491-L

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

Details
ISOSCAN® EDS460-DG
ISOSCAN® EDS460-DG

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

Details
ISOSCAN® EDS150
ISOSCAN® EDS150

Ground-fault locator with 6 integrated measuring current transformers for localization of ground faults in main circuits

Details
ISOSCAN® EDS151
ISOSCAN® EDS151

Ground-fault locator with 6 integrated measuring current transformers for localization of ground faults in control circuits

Details
ISOSCAN® EDS30…
ISOSCAN® EDS3090 Series

Portable ground-fault location systems for ungrounded and grounded systems

Details

Ground-Fault Monitoring for Grounded Systems

LINETRAXX® SmartDetect RCMS410

Four-channel DC, AC and pulse current sensitive residual current monitor for earthed AC, AC/DC and DC systems

Details
LINETRAXX® RCMS460-D
LINETRAXX® RCMS460-D Blindspot®

Multi-channel AC/DC ground-fault monitor

Details
LINETRAXX® RCMS460-L
LINETRAXX® RCMS460-L Blindspot®

Multichannel AC, pulsed DC and AC/DC sensitive ground-fault monitor

Details
LINETRAXX® RCMS490-D
LINETRAXX® RCMS490-D Blindspot®

Multi-channel AC/DC ground-fault monitor with individual relay outputs

Details
LINETRAXX® RCMS490-L
LINETRAXX® RCMS490-L Blindspot®

Multichannel AC, pulsed DC and AC/DC sensitive ground-fault monitor with one alarm contact per channel

Details

Power Quality

LINETRAXX® PEM353

Universal measuring device with numerous measured quantities, energy and power measurement with storage, Power Quality Monitoring, limit value monitoring with alarm forwarding

Details

Current Transformers

LINETRAXX® CTUB100 Series

AC/DC sensitive measuring current transformer (Type B)

Details

Standards

DIN EN 60255-1 VDE 0435-300

Messrelais und Schutzeinrichtungen - Teil 1: Allgemeine Anforderungen

DIN EN 60255-127 VDE 0435-3127

Messrelais und Schutzeinrichtungen - Teil 127: Funktionsnorm für Über-/Unterspannungsschutz 

EN 61557-9

Elektrische Sicherheit in Niederspannungsnetzen bis AC 1 000 V und DC 1 500 V – Geräte zum Prüfen, Messen oder Überwachen von Schutzmaßnahmen - Teil 9: Einrichtungen zur Isolationsfehlersuche in IT-Systemen

EN 61557-15

Elektrische Sicherheit in Niederspannungsnetzen bis 1000 V AC und 1500 V DC - Geräte zum Prüfen, Messen oder Steuern von Schutzsystemen - Teil 15: Anforderungen an die funktionale Sicherheit von Isolationssteuergeräten in IT-Systemen und Geräten zur Erkennung von Isolationsfehlern in IT-Systemen

EN 61557-8

Elektrische Sicherheit in Niederspannungsnetzen bis AC 1 000 V und DC 1 500 V – Geräte zum Prüfen, Messen oder Überwachen von Schutzmaßnahmen - Teil 8: Isolationsüberwachungsgeräte für IT-Systeme

DIN EN 50272-2

Safety requirements for secondary batteries and battery installations - Part 2: Stationary batteries  

Accionamiento y cintas de transporte

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