Patent ID: 11965925
Assignee: AUDI HUNGARIA ZRT.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. A method of localizing a partial discharge in or at an electrical component by a test device, the method by the test device comprising:
applying a plurality of voltage signals to at least two phases, from among phases (U, V, W), of a winding, from among plural windings, of the electrical component, according to a switching matrix,
capturing an electromagnetic wave caused by the partial discharge in the electrical component by at least one antenna,
capturing sound waves caused by the partial discharge by multiple microphones arranged in a set environment around the electrical component,
examining if the electromagnetic wave captured by the at least one antenna exceeds a first limit value, and/or a sound wave captured by one of the multiple microphones exceeds a second limit value, to determine the partial discharge,
ascertaining a location of the partial discharge from among the at least two phases of the phases (U, V, W) based on the sound waves and/or the electromagnetic wave and on the first limit value and/or the second limit value.