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公开(公告)号：US09645175B2
公开(公告)日：2017-05-09
申请号：US14649915
申请日：2013-12-04
发明人： Arnaud Labbe
CPC分类号： G01R15/202 , G01R15/207 , G01R33/0052 , H01F3/04 , H01F3/14 , H01F41/0213
摘要： An electrical current transducer including a housing (5), a magnetic field detector device (3) comprising a magnetic field detector (11), and a magnetic circuit (2) comprising a magnetic core (4) with a gap (6) and a grounding device (8) mounted on the magnetic core. The magnetic field detector is positioned in the gap (6). The grounding device comprises at least two parts (8a, 8b), a first part (8a) mounted against a first lateral side (14a) of the magnetic core and a second part (8b) mounted against a second lateral side (14b) of the magnetic core opposite the first lateral side. At least one of the first and second parts comprises clamp fixing extensions (30a, 30b) cooperating with the other of the first and second parts configured for clamping together the first and second parts around a portion of the magnetic core. The least one of the first and second parts comprising electrically conductive material, said part comprising at least one contact terminal (34a, 34b) being adapted to provide an electrical grounding connection for grounding the magnetic core.
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公开(公告)号：US09804202B2
公开(公告)日：2017-10-31
申请号：US15148975
申请日：2016-05-06
发明人： Arnaud Labbe
CPC分类号： G01R15/185 , G01R15/183 , G01R15/207 , G01R19/0092 , G01R31/3696
摘要： An electrical current transducer is disclosed which includes a primary conductor bar for carrying the current to be measured, a magnetic core having a magnetic circuit gap, a magnetic field sensor having a magnetic field detector positioned in the magnetic circuit gap, and an insulating housing surrounding the magnetic core and magnetic field sensor. The primary conductor bar has connection terminal ends extending outside of the housing configured for connection to an external primary conductor. The primary conductor bar has a core passage section comprising a fuse portion configured for interruption of the primary conductor if a predefined electrical current is exceeded. The core passage section has a reduced width (W1) in comparison to the connection terminal ends extending outside of the housing thereby providing indents within which at least a portion of the magnetic core is positioned such that a central passage of the magnetic core has a width (W3) less than the width (W2) of the primary conductor connection ends.
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