1.1.10 Can the hastighed of a enfaset motor be controlled med a frekvensomformer?

With an AC-motor (enfaset motor or single-phase 230V motilr), hastighed control via a frekvensomformer is not possible. In a enfaset motor med a running and starting kondensator, the starting kondensator is switched off by a centrifugal switch at a certain hastighed. This does not work when the hastighed is changed by a frekvensomformer. The motilr would be destroyed. Using a trefaset motor med a single-phase frekvensomformer is recommended here, especially since it offers more control muligheds, higher drejningsmoment, and is also more economical.