| 摘要 |
The present invention relates to an apparatus for reducing and/or avoiding harmful bearing currents in an electrical machine (M), such as preferably a three-phase EC motor (M), having a rotor (2) and a stator (3) which is constructed in an insulated manner, wherein at least one outer bearing ring (4a) and one inner bearing ring (4b) are provided between the rotor (2) and the stator (3), comprising connection electronics (10) for connecting the motor (M), wherein the stator (3) is connected, by means of an electrical connection (20), to a high-frequency electronic potential (11) which differs from the earth potential (UE) and is stable with respect to the latter at a potential tap (20a) of the connection electronics (10). |
