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公开(公告)号：EP2174147B1
公开(公告)日：2012-03-07
申请号：EP08786721.4
申请日：2008-07-31
申请人： Epcos AG
IPC分类号： G01R15/20
CPC分类号： G01R15/207
摘要： The invention relates to an arrangement for measuring a current flowing through an electrical conductor (1), said arrangement comprising a magnetic circuit (2) comprising an air gap (3), for coupling to the electrical conductor (1). A component (4) sensitive to a magnetic field is arranged in the air gap (3) of the magnetic circuit (2), said component being used to measure the magnetic field generated by the electrical conductor (1). A control core (5) is arranged in the air gap (3) of the magnetic circuit (2), said control core (5) comprising a control winding (6) for the magnetic saturation of the control core (5). A plurality of additional elements (7a, 7b) are arranged close to the component (4) sensitive to magnetic fields, said elements being used to guide parasite magnetic fields generated around the component (4) sensitive to magnetic fields, independently of the control cores (5).
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公开(公告)号：EP2174147A1
公开(公告)日：2010-04-14
申请号：EP08786721.4
申请日：2008-07-31
申请人： Epcos AG
IPC分类号： G01R15/20
CPC分类号： G01R15/207
摘要： The invention relates to an arrangement for measuring a current flowing through an electrical conductor (1), said arrangement comprising a magnetic circuit (2) comprising an air gap (3), for coupling to the electrical conductor (1). A component (4) sensitive to a magnetic field is arranged in the air gap (3) of the magnetic circuit (2), said component being used to measure the magnetic field generated by the electrical conductor (1). A control core (5) is arranged in the air gap (3) of the magnetic circuit (2), said control core (5) comprising a control winding (6) for the magnetic saturation of the control core (5). A plurality of additional elements (7a, 7b) are arranged close to the component (4) sensitive to magnetic fields, said elements being used to guide parasite magnetic fields generated around the component (4) sensitive to magnetic fields, independently of the control cores (5).
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3.发明授权
公开(公告)号：EP2174146B1
公开(公告)日：2012-01-25
申请号：EP08786846.9
申请日：2008-08-04
申请人： Epcos AG
CPC分类号： G01R15/207
摘要： The invention relates to an arrangement for measuring a current flowing in an electrical conductor (1) having a magnetic circuit (2) for coupling to the electrical conductor (1), said circuit comprising an air gap (3). The magnetic field-sensitive component (4) serving to measure the magnetic field generated by the electrical conductor (1) is located between the arms of the magnetic circuit (2). Two control cores (5a, 5b) are disposed in the air gap (3) of the magnetic circuit (2), the control cores (5a, 5b) each comprising a control winding (6) for magnetically saturating the respective control core (5a, 5b), said control cores being disposed on either side of the electrical conductor (1).
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4.发明公开
公开(公告)号：EP2174146A1
公开(公告)日：2010-04-14
申请号：EP08786846.9
申请日：2008-08-04
申请人： Epcos AG
CPC分类号： G01R15/207
摘要： The invention relates to an arrangement for measuring a current flowing in an electrical conductor (1) having a magnetic circuit (2) for coupling to the electrical conductor (1), said circuit comprising an air gap (3). The magnetic field-sensitive component (4) serving to measure the magnetic field generated by the electrical conductor (1) is located between the arms of the magnetic circuit (2). Two control cores (5a, 5b) are disposed in the air gap (3) of the magnetic circuit (2), the control cores (5a, 5b) each comprising a control winding (6) for magnetically saturating the respective control core (5a, 5b), said control cores being disposed on either side of the electrical conductor (1).
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