Power supplying devices and systems as well as power converters, in particular comprising transformers, inverters, converters, DC/DC converters, electrical battery storages and their measuring and regulating devices; regulating, controlling and measuring devices and systems, in particular for operating with wind-powered devices, hydroelectric power stations, combustion engines or other generator systems for electro-mechanical energy conversion as well as the evaluation software therefor; all aforementioned goods as far as included in this class