Frequency converter e.g. for internal vibrators used for concrete compression, has mains socket on housing supplied with mains frequency via mains cable, spooling arrangement for mains cable, separate socket supplied with special frequency

摘要

The frequency converter has a frequency conversion device for electrical a.c current, a housing (1) for the device, and a mains cable (3) supplying the device with a.c. current. At least one separate socket (5) is mounted on the housing and supplied with a special frequency different from the mains frequency and at least one mains socket is mounted on the housing that is supplied with mains frequency via the mains cable. The converter has an arrangement (7) for spooling the mains cable.