Power and Transformer Stations

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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UPS

A safe supply until the generator is running

An uninterruptible power supply (UPS) is used to ensure the supply of critical electrical loads in the event of problems in the power supply. The UPS systems (normally battery or oscillating weight systems) bridge the period until the emergency power systems (generators) are activated or the network is available again. Electrical safety is continuously monitored by Bender products, including offline monitoring.

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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 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.

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Downloads

CategoryNameSizeLanguageTimestampD-/B-Number
Product Overviews Power Quality/Measuring and monitoring relays 2.7 MB EN2022/05/25 08:08:0925.05.2022 08:08:09
Product Overviews ISOMETER®/ISOSCAN® 3.7 MB EN2022/05/25 08:08:1025.05.2022 08:08:10
Product Overviews Residual Current Monitoring 2.2 MB EN2022/05/24 12:26:4924.05.2022 12:26:49
Flyer Power Quality 468.0 KB EN2022/12/14 08:20:2814.12.2022 08:20:28
Market Segment Brochures Power Plants 3.8 MB EN2021/04/15 12:34:2215.04.2021 12:34:22
Application note EDS309x 1.4 MB EN2019/05/13 10:30:3813.05.2019 10:30:38D00012
Technical article Insulation Fault Location - Planning and Setup 112.4 KB EN2019/05/13 10:29:2213.05.2019 10:29:22
Technical article Where Residual Current Technology Meets the IT System 353.8 KB EN2019/05/13 10:29:2213.05.2019 10:29:22
Flyer Offline Monitoring 1.7 MB EN2019/05/13 10:30:5913.05.2019 10:30:59
Technical article Electrical Safety in Control and Auxiliary Circuits 632.6 KB EN2023/04/21 09:09:3521.04.2023 09:09:35

Products

Measuring and monitoring relays

LINETRAXX® VMD258
LINETRAXX® VMD258

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

Insulation monitoring

ISOMETER® iso685…
ISOMETER® iso685…

Insulation monitoring device for inverter applications and large industrial plants

ISOMETER® IRDH575
ISOMETER® IRDH575

- This device series is in the discontinuation phase. -
Deliverable according to availability until 31.12.2023.

ISOMETER® IR425-D4
ISOMETER® IR425-D4

Insulation monitoring device for unearthed AC/DC control circuits

Insulation fault location

ISOSCAN® EDS150
ISOSCAN® EDS150

Insulation fault locator with 6 integrated measuring current transformers for localisation of insulation faults in main circuits

ISOSCAN® EDS151
ISOSCAN® EDS151

Insulation fault locator with 6 integrated measuring current transformers for localisation of insulation faults in control circuits

ISOSCAN® EDS30…
ISOSCAN® EDS30…

Portable insulation fault location systems for unearthed and earthed systems (IT and TN systems)

ISOSCAN® EDS440
ISOSCAN® EDS440

Insulation fault locator for localisation of insulation faults in main circuits

ISOSCAN® EDS441
ISOSCAN® EDS441

Insulation fault locator for localisation of insulation 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® EDS460-DG
ISOSCAN® EDS460-DG

- 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-D
ISOSCAN® EDS461-D

- 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® EDS490-L
ISOSCAN® EDS490-L

- 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® EDS491-L
ISOSCAN® EDS491-L

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

Residual current monitoring

LINETRAXX® SmartDetect RCMS410

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

LINETRAXX® RCMS460-L
LINETRAXX® RCMS460-L

Multichannel AC, pulsed DC and AC/DC sensitive residual current monitor

LINETRAXX® RCMS460-D
LINETRAXX® RCMS460-D

Multichannel AC, pulsed DC and AC/DC sensitive residual current monitor

LINETRAXX® RCMS490-D
LINETRAXX® RCMS490-D

Multichannel AC, pulsed DC and AC/DC sensitive residual current monitor with one alarm contact per channel

LINETRAXX® RCMS490-L
LINETRAXX® RCMS490-L

Multichannel AC, pulsed DC and AC/DC sensitive residual current 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

Measuring and monitoring relays

LINETRAXX® VMD258
LINETRAXX® VMD258

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

Details

Insulation monitoring

ISOMETER® iso685…
ISOMETER® iso685…

Insulation monitoring device for inverter applications and large industrial plants

Details
ISOMETER® IRDH575
ISOMETER® IRDH575

- This device series is in the discontinuation phase. -
Deliverable according to availability until 31.12.2023.

Details
ISOMETER® IR425-D4
ISOMETER® IR425-D4

Insulation monitoring device for unearthed AC/DC control circuits

Details

Insulation fault location

ISOSCAN® EDS150
ISOSCAN® EDS150

Insulation fault locator with 6 integrated measuring current transformers for localisation of insulation faults in main circuits

Details
ISOSCAN® EDS151
ISOSCAN® EDS151

Insulation fault locator with 6 integrated measuring current transformers for localisation of insulation faults in control circuits

Details
ISOSCAN® EDS30…
ISOSCAN® EDS30…

Portable insulation fault location systems for unearthed and earthed systems (IT and TN systems)

Details
ISOSCAN® EDS440
ISOSCAN® EDS440

Insulation fault locator for localisation of insulation faults in main circuits

Details
ISOSCAN® EDS441
ISOSCAN® EDS441

Insulation fault locator for localisation of insulation 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® EDS460-DG
ISOSCAN® EDS460-DG

- 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-D
ISOSCAN® EDS461-D

- 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® EDS490-L
ISOSCAN® EDS490-L

- 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® EDS491-L
ISOSCAN® EDS491-L

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

Details

Residual current monitoring

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-L
LINETRAXX® RCMS460-L

Multichannel AC, pulsed DC and AC/DC sensitive residual current monitor

Details
LINETRAXX® RCMS460-D
LINETRAXX® RCMS460-D

Multichannel AC, pulsed DC and AC/DC sensitive residual current monitor

Details
LINETRAXX® RCMS490-D
LINETRAXX® RCMS490-D

Multichannel AC, pulsed DC and AC/DC sensitive residual current monitor with one alarm contact per channel

Details
LINETRAXX® RCMS490-L
LINETRAXX® RCMS490-L

Multichannel AC, pulsed DC and AC/DC sensitive residual current 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

Standards

DIN EN 60255-1 VDE 0435-300

Measuring relays and protection equipment - Part 1: Common requirements

DIN EN 60255-127 VDE 0435-3127

Measuring relays and protection equipment - Part 127: Functional requirements for over/under voltage protection

EN 61557-15

Electrical safety in low voltage distribution systems up to 1000 V ac and 1500 V dc - Equipment for testing, measuring or monitoring of protective measures - Part 15: Functional safety requirements for insulation monitoring devices in IT systems and equipment for insulation fault location in IT systems

EN 61557-9

Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 9: Equipment for insulation fault location in IT systems

EN 61557-8

Electrical safety in low voltage distribution systems up to 1 000 v a.c. and 1 500 v d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 8: Insulation monitoring devices for IT systems.

DIN VDE 0100-731

Errichten von Niederspannungsanlagen - Teil 7-731: Anforderungen für Betriebsstätten, Räume und Anlagen besonderer Art – Abgeschlossene elektrische Betriebsstätten

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