3-phase current transformer and a housing assembly comprising a 3-phase current transformer

Abstract

A 3-phase current transformer (10) comprising a current transformer housing (20) with three through-openings (21), each having an opening axis (30), a measuring coil (40) arranged within the current transformer housing (20) for each through-opening (21), a first component (51) of a 2-component mechanical fastening system (50) supported by the current transformer housing (20), and a measuring output (60) connected to the measuring coils (40) for signal and / or measurement purposes, wherein (i) at least two of the opening axes (30) lie in a plane (31) and the third opening axis (30) has a distance (32) from this plane (31), and / or wherein (ii) the measuring output (60) comprises a connector (61) supported by the current transformer housing (20), and / or exactly two measuring contacts (62) connected to each measuring coil (40) for each measuring coil (40), and / or wherein (iii) at least two of the two measuring coils (40) overlap each other when viewed along the associated opening axes (30).