measuring device for detecting magnetic unidirectional flux in the core of a transformer, compensation device for compensating magnetic unidirectional flux in an electrical transformer and method for compensating unidirectional magnetic flux in a magnetic core of an electrical transformer

摘要

The present invention relates to a measuring device for detecting a magnetic unidirectional flux in the core of a transformer, wherein a sensor (1) formed from a ferromagnetic sensor core (2) which is wound around a sensor coil (3) is disposed in a section of a core member (6) in a cooling channel (5), said section being predefined by the winding width (15), or in an annular space (21 ) formed from an outer peripheral surface (4) of the core member (6) and an inner peripheral surface (22) of an associated transformer winding such that a magnetic partial flow (7) is deflected by the member of the core (6) and oriented over at least one non-ferromagnetic slot (10).