Rail connectors feature additional polyurethane coating
At Railtex 2015, which takes place from 12th to 14th May at the NEC in Brimingham, HARTING will be exhibiting its connectivity solutions for rail applications. The products on show will include discrete heavy-duty connectors for use on board rail vehicles, intercar jumpers for transmitting high-speed signals along Ethernet backbones, rugged Ethernet switches, high-speed backplane-based systems and a range of RFID detectors and transponders.
Designed for use on board rail vehicles, the Han(R) M Plus connectors feature an additional polyurethane coating. This coating, which replaces the seal where the hood and housing fit together and the flange gasket of the bulkhead-mounted housing, provides protection against the effects of rock chips, icing, salt mist, UV radiation, industrial exhaust gases, oils and fuels.
The company’s recently released differential current transformer permits the measurement of the current deviation in supply and return conductors or the monitoring of earth leakage currents in single or multi-phase power cables. Designed for a maximum cable diameter of 110mm, the device is suitable for the detection of primary nominal currents of up to 10A with a conversion ratio of 1:600. The transformer can be used for measurements over the frequency range from 5 to 400Hz.
HARTING’s RFID systems are robust, reliable and have a long operating life, making them particularly suitable for modern railway systems, which experience both environmental and reliability demands. The RFID systems are also suitable for when only particular doors of a train may be opened, such as when the vehicle is longer than the platform. In this instance, the system allows the train to stop at a precise position and provides onboard electronics with a signal showing which doors have been opened and which have not. For protection against manipulation, the transponders can also be hidden in concrete.
The company’s RFID systems can also be used in charging stations for electric trams and buses. To avoid the loss of charging time, the systems inform the vehicle that it is approaching a charging station. The systems can also be used to record data from trains travelling at over 120km/h. Here, the transponders are mounted on the train and the RFID reader is typically housed in a switching cabinet mounted near the track in conformity with railway standards.