Foto de stock - 21 September 2023, Saxony, Annaberg-Buchholz: ""High-voltage danger to life"" is written on a door to an inverter of a new type of charging station for battery trains at the south station in Annaberg-Buchholz. Experts from the Smart Rail Connectivity Campus(SRCC) want to use the charging station to help the switch from diesel to battery trains. The ""wallbox"" for trains (l) will be tested in Annaberg-Buchholz for a year and is expected to be available to battery trains in regular operation in 2024. The researchers' task is to create an interface between the railroad's power grid with a frequency of 16.7 hertz and the rest of the power grid with 50 hertz. A symmetry converter will be used in the new station to ensure that the outgoing power grid is used evenly across three phases. According to the SRCC rail research campus, it is the first 50 Hertz charging station for battery trains in Europe. Photo: Hendrik Schmidt/dpa. - Annaberg-Buchholz/Saxony/Germany