Device for detecting fault current in electrical circuits in machines, has electromagnetic filter, which is connected with measuring device for detecting fault current

摘要

The device has an electromagnetic filter, which is connected with a measuring device for detecting a fault current (I-F). The electromagnetic filter comprises an inductor made of iron core (4) and a coil, and the inductor has an additional coil for detecting fault current. A magnetic flux in the electromagnetic filter is detected by a measuring device.