LABYRINTH SEAL FOR THREE-PHASE MACHINES

摘要

The invention relates to electric machines, comprising a shaft rotatably supported in a housing and a labyrinth seal having labyrinth contours that mesh with each other for sealing the housing against the shaft. The invention relates, in particular, to the labyrinth seal for sealing the housing of a three-phase machine against a shaft that can be rotated in relation to the housing. According to the invention, at least one side of the labyrinth seal has an insulating coating at least in the region of the labyrinth contours.