Generators for auxiliary power and traction drives of rolling stock (DMU/DEMU, diesel locomotives)

Description

The manufacturer supplies generators for railway rolling stock: standard machines of its series adapted for rail applications, and specialized generators built to industry standards and the specific requirements of the customer. The manufacturer’s alternators operate in underframe installations on diesel multiple units in the United Kingdom — Bombardier Turbostar, Alstom Coradia Class 175 and Class 180, where they supply power for heating, lighting, ventilation and passenger sockets. Generators have also been supplied as part of traction drives of diesel-electric multiple units (DEMU), for example for the Italian DPA locomotive, and for a number of other European projects. For air conditioning of Class 158 and Class 159 cars, the company supplies Liebherr generators of 17 kVA. For main-line and shunting diesel locomotives, fully enclosed TE series generators have been produced for more than twenty years. Their insulation system with a proprietary black protective coating provides high mechanical strength and protection against railway dust, oil and grease. Stator processing may include additional mechanical fixing and banding of the end windings, and VPI impregnation; rotor processing includes VPI impregnation, increased shaft machining accuracy and clamping rings against displacement of the lamination stack. Special leads (long leads, busbars), cable glands, fans, adapters and reinforced fixing are provided. Enclosed T-Type generators (TE3, TE28, TE34) cover 6.5–80 kVA at 50 Hz and up to 96 kVA at 60 Hz, IP54 (IP67 option), short-circuit current over 300% of rated for 10 s. The manufacturer also builds variable-speed machines and DC generators: the latter are used to reinforce the DC onboard network when consumption grows due to new GSM-R signalling and communication equipment. The company produces generators for special voltages; single-phase 650 V generators from the standard range are used in track signalling systems. For rail projects the manufacturer provides data to RT standards, mean time between failures (MTBF), life-cycle cost and RAMS, and safety case analysis. The standard warranty is 24 months, subject to safety case analysis and a maintenance contract. The group has a specialized traction unit for repair, refurbishment and rewinding of traction generators and AC and DC traction motors of any manufacturer (services not included in the catalogue).

Technical specifications