Electric machine i.e. asynchronous machine, has main connection from which current flowing via current distribution arrangement is evenly distributed to carbon brushes of slip rings, where arrangement comprises adapted geometry

摘要

The machine has a rotor rotating around an axis, with a central body, a shaft and a rotor winding, where the rotor winding is supplied with current from a main connection (19) via slip rings arranged on the shaft. The slip rings are contacted by several carbon brushes (24), which are concentrically arranged around the axis. Current flowing from the main connection (19) via a current distribution arrangement (18') is evenly distributed to the individual carbon brushes of the slip rings, where the current distribution arrangement comprises an adapted geometry.