Using signal technology with high availability

Signalling technology/pole-mounted switch mechanism

Monitoring to ensure safe railway operation

Signalling technology/pole-mounted switch mechanism

Railway signalling and pole-mounted switch systems are crucial for safe and smooth operation of the whole railway system. The train driver relies on functioning signals. Bender can detect faults in the cabling quickly and cost-effectively during operation using an ISOMETER® ground-fault monitoring device and locate them automatically by means of ground-fault location systems. Downtimes are minimized and maintenance can be planned.

Product overview ISOMETER®
Brochure Predict and protect - signal power fault detection systems
Brochure Railway technology
Technical paper Why the IT system is often the best choice
Technical paper New ideas for using data from insulation monitoring devices in the railway field
Technical paper A giant on its way towards the future
Technical paper Insulation fault location - Planning and set up

Recommended systems for ground-fault detection (ungrounded systems):

Recommended systems for ground-fault location:

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 

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

IEC 60204-1

Safety of machinery - Electrical equipment of machines - Part 1: General requirements

Points drive

Setting the right course for electrical safety

Points drive

The points are controlled from the signal box, normally automatically on an electric/electronic basis. If a ground fault occurs in the connection between the signal box and the points, this can be detected and reported very early by means of a Bender ISOMETER®. Thereby, downtimes can be minimized and the condition of the insulation can be continuously monitored.

Product overview ISOMETER®
Brochure Predict and protect - signal power fault detection systems
Brochure Railway technology
Technical paper A giant on its way towards the future

Recommended systems for ground-fault detection (ungrounded 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 

IEC 60204-1

Safety of machinery - Electrical equipment of machines - Part 1: General requirements

Points heating

Safe heating of points in winter

Points heating

Failure of the points into winter leads to unnecessary interruptions to operation and delays. Monitoring the controllers of points heating for faults, energy quality, energy requirements and load currents using measuring and monitoring relays enables smooth operation without disconnection. While the system is out of operation, monitoring is carried out as continuous offline measurement.

Product overview ISOMETER®
Product overview Residual current monitoring
Product overview Power Quality
Flyer Power Quality
Brochure Railway technology

Recommended systems for ground-fault monitoring (grounded systems):

Recommended systems for ground-fault detection (ungrounded systems) - offline:

Recommended systems for ground-fault detection (ungrounded systems) - online:

Recommended measuring and monitoring relais:

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 

IEC 60204-1

Safety of machinery - Electrical equipment of machines - Part 1: General requirements

Railway crossing/Safety installations

Safety first - also for barriers

Railway crossing/Safety installations

Railway crossings are made safe by technical equipment. The train triggers the gates to open or close by driving over sensors. Failure of this safety equipment would bring the train to a stop or block crossing traffic. Securing with fault current monitoring devices or ground-fault  monitoring devices helps avoid these problems.

Product overview ISOMETER®
Brochure Predict and protect - signal power fault detection systems
Brochure Railway technology

Recommended systems for ground-fault monitoring (grounded systems):

Recommended systems for ground-fault detection (ungrounded systems):

Approvals:

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 

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

Automatic train control system / European Train Control System (ETCS)

Safe train control in the international railway system

Automatic train control system

The automatic train control system (LZB) is a railway system which transfers drive parameters or drive orders to the train driver based on which they are to drive their vehicles. It also allows the monitoring of the driving behaviour of trains, especially at maximum speed. If necessary, it intervenes into the vehicle controller to initiate braking in order to avoid excessive speed. Automatic train control systems can also be used for fully automated control of the driving and braking processes of trains. There is inductive data transfer between the vehicle and the travel route by means of a pair of cables laid between the rails (known as the line conductors). The power for each section is supplied via an ungrounded AC 750 V system which is monitored using special ISOMETER®s. The power supply of the ETCS along the tracks is also set up as an ungrounded system and requires continuous ground-fault monitoring.

Product overview ISOMETER®
Brochure Predict and protect - signal power fault detection systems
Brochure Railway technology

Recommended systems for ground-fault detection (ungrounded 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 

Track field illumination/Safety lights

Easier shunting on illuminated tracks

Track field illumination

Emergency and safety lighting at passenger train stations as well as track field illumination are operated via ungrounded power supplies. Ground-fault monitoring devices continuously monitor the condition of the insulation. Grounded system parts can be monitored for faults using residual current monitors. Switching to a redundant power supply can be done via the ATICS® product.

Product overview ISOMETER®
Product overview Residual current monitoring
Flyer ATICS®
Brochure Railway technology
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 

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

DIN EN 1838

Lighting applications - Emergency lighting

Ril 813.05

Richtlinie DB - Beleuchtung, Starkstromanlagen und Brandschutz

Ril 954.9103

Richtlinie DB - Gleisfeldbeleuchtung