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Scalable battery charging for rolling stock

Railway, Transportation

The challenge: A customer was updating a series of regional trains and needed battery charging and dc supply, approximately 7kW 110VDC, from 3-phase 380VAC. The trains were to operate in a tropical climate and they required natural convection cooling to reduce maintenance.

The solution: We developed a new platform based on standard modules, where power is scalable and redundancy, if desired, can be accomplished by paralleling modules. The power system was mounted undercarriage in a special welded aluminum box, meeting IP 55 classification. With the combination of high efficiency and the roomy box natural convection cooling was sufficient.

Added value: After more than 5 years in operation the system can without a doubt be labeled PIU (proven in use). The scalability made the solution reusable for larger power requirements and the natural convection reduced maintenance considerably.


Cases in Railway, Transportation

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