Siemens has been awarded a turnkey contract to build and equip an 11.5km catenary-free light rail line to link Education City the Doha Metro

Siemens has been awarded a turnkey contract worth over €100 million to build and equip an 11.5km catenary-free light rail line to link Education City with the Doha Metro. The contract with the Qatar Foundation includes signalling and communications systems, electrification, and depot equipment, as well as platform screen doors at four stations. Siemens is to supply 19 air-conditioned Avenio 27.7m-long, 239-passenger low-floor vehicles, specially adapted for operation in high temperatures and fitted with the Sitras HES system for working without overhead wires.

Each roof-mounted Sitras HES module combines a double-layer capacitor with a NiMH battery, allowing the vehicle to store both traction and braking energy. Power converters transform the 11kV three-phase AC into 750V DC for charging the energy storage unit. The charging cycle will take only 20 seconds, taking power from charging points at each of the line’s 25 stations, which will be fed by centralised rectifier sub-stations.

Source : railwaysafrica.com

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