Insulating cap for winding head of high-voltage electrical machine, has cap main structure whose external surface is ground, such that electrical connection units are provided at inner side of insulating layer of cap main structure

摘要

The insulating cap (16a) has a cap main structure having an inner space (17) that is provided with a U-shaped profile. An opening (23) is provided with one side of cap main structure that is provided with a cover semiconductor layer (21) that is provided on outer side of an insulating layer (20). The electrical connection units are provided at inner side of insulating layer. A gradient layer (19) is embedded in inner side of insulating layer. The external surface of cap main structure is ground. An independent claim is included for high-voltage electrical machine.