公开(公告)号：US20230091492A1

公开(公告)日：2023-03-23

申请号：US17950661

申请日：2022-09-22

申请人： AUDI AG ,  AUDI HUNGARIA Zrt.

发明人： Thomas DIRSCH ,  Andreas RAUSCHER ,  Peter SIPOS ,  Peer STENZEL

IPC分类号： G01R31/12 ,  G01R31/16

摘要： A test device to localize a partial discharge in or at an electrical component may include at least one antenna to capture an electromagnetic wave caused by a partial discharge in the electrical component. The test device includes multiple microphones arranged in an environment around the electrical component. The microphones capture sound waves caused by the partial discharge. It is examined if an intensity of the electromagnetic wave exceeds a first limit value and/or the intensity of the sound wave captured by one of the multiple microphones exceeds a second limit value. Depending on the captured sound wave and/or the electromagnetic wave and on the examination relating to the first and/or second limit value, a location of the partial discharge can be determined.