Power and Transformer Stations

Electrical Safety for Power and Transformer Stations

Operating power stations safely

As the world grows, electrical supply systems grow. It is common for failures and disturbances to occur as a consequence of overloaded networks. Bender provides innovative electrical safety solutions for power and transformer stations to monitor the systems, preventing potential failure and overloads. Low voltage controls must be monitored for electrical safety 24/7, and Bender provides several products to do so. After all, an electrical fault will pose a significant risk in terms of downtime and can become a potential fire hazard. At the same time, sudden service intervention can be expensive and time-consuming. For this reason, insurance bodies often request condition monitoring systems from their clients. Such a system, like the Bender ground-fault monitoring and detection unit, will provide a clear overview of the plant's electrical health and provide all the relevant data needed for supervision and maintenance. 

Offline monitoring for stand-by equipment

Continuous ground-fault monitoring of de-energized loads plays a decisive role in damage prevention. Crane systems, fire extinguisher pumps, pusher drives, etc. are often only used occasionally or in an emergency - but that is exactly when they need to work flawlessly. Bender offline ISOMETER®s permanently monitor de-energized systems, reporting ground faults early and thus providing perfect protection against critical situations.

Voltage monitoring in three phase power systems

The VMD258 analog voltage relay monitors three phase AC systems for under and over voltages (window function) It’s internals are based on analog technology and omit the use of a microprocessor, which makes this relay suitable for nuclear and some demanding military applications. The auxiliary voltage supply can be derived from the system to be monitored. Both, system and supply are separated by a dual layer of insulation for additional internal safety and reliability. Special filter chokes dampen potential electronic noise stemming from the monitored power system. The response values for under and overvoltage and also for time response delays can be adjusted to varying levels.

Downloads

NameCategorySizeLanguageTimestampD-/B-Number
Product Overview ISOMETER®/ISOSCAN® Product Overviews 5.3 MB EN2024/02/1616.02.2024
2020 Guidelines (US) Technical Information 1.9 MB EN2020/06/1515.06.2020
Overview Brochure Product Overviews 10.3 MB EN2023/10/0202.10.2023
Bender Industry Application Market Segment Brochures 19.1 MB EN2022/08/1919.08.2022

Products

Ground-Fault Location, Ungrounded

ISOSCAN® EDS460-D
ISOSCAN® EDS460-D

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

ISOSCAN® EDS30…
ISOSCAN® EDS3090 Series

Portable ground-fault location systems for ungrounded and grounded systems

ISOSCAN® EDS440
ISOSCAN® EDS440 Series

Ground-fault location module for ungrounded AC/DC systems

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 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® RCMS490-D
LINETRAXX® RCMS490-D Blindspot®

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

Measuring and monitoring relays

LINETRAXX® VMD258
LINETRAXX® VMD258

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

Ground-Fault Location, Ungrounded

ISOSCAN® EDS460-D
ISOSCAN® EDS460-D

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

Details
ISOSCAN® EDS30…
ISOSCAN® EDS3090 Series

Portable ground-fault location systems for ungrounded and grounded systems

Details
ISOSCAN® EDS440
ISOSCAN® EDS440 Series

Ground-fault location module for ungrounded AC/DC systems

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 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® RCMS490-D
LINETRAXX® RCMS490-D Blindspot®

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

Details

Measuring and monitoring relays

LINETRAXX® VMD258
LINETRAXX® VMD258

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

Details

Standards

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

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

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