The SAM device monitors the surge arrestor (SA) within a certain railway section and reports broken ones via an integrated GSM-Modem. It requires no external power supply. The integrated high-performance battery has a maximum uptime of 5 years.
The monitoring device detects the condition of the fuse through contactless current- and voltage measurements. A defective fuse causes a report which will be transmitted by the GSM module. The device requires no auxiliary power supply and no signal lines.
The monitoring device measures the current and the voltage curve across the fuse. The measurements are made with an altering current transmitter. The current pulse generated by melting fuses triggers a reversible signalling contact. The voltage measurement additionally monitors the triggering criteria. An SMS will be sent by the GSM-Module if it gets a report.
WITT Solutions GmbH is an owner-managed, medium-sized high-tech company that develops and sells measuring and testing technology for monitoring power supply and superstructure systems for rail-bound traffic. Our professional power monitor products monitor e.g. earthing potentials, cable faults and contact voltages and are I4.0 capable as well as Railway Federal Office(EBA) approved products. With our innovative rail infrastructure monitoring systems, we are cooperation partners of renowned companies.
Witt Solutions GmbH provides different power monitoring systems for the respective task - DC voltage monitoring, monitoring cable systems, short-circuit systems...
The WITT EPM 4 measurement device monitors the potentials of the connected grounds and evaluates the occurring voltages.
The WITT EPM 3 measurement device monitors the potentials of the connected grounds and evaluates the occurring voltages.
The WITT TVM 4 device monitors the driving voltage of individual sections and supplies information about the voltage values.
WITT CM 3 is a self-resetting cable monitoring device for the detection of cable errors. Between signal and triggering a time delay of 4.8 sec is integrated.
WITT CM 4 is a self-resetting cable monitoring device for the detection of cable errors., used for insulation monitoring of cable systems in DC Systems.
The WITT EscS 7 is an auto-resetting earth short-circuiting device that accords to EN 50122 regulations for the protection of public and infrastructure.
The WITT EscS 6 (EKS8) is an auto-resetting earth short-circuiting device after DIN VDE 0115 part 300 and part 320.
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