EP 2156448 A1 20100224 - ELECTRICAL TRANSFORMER WITH UNIDIRECTIONAL FLUX COMPENSATION
Title (en)
ELECTRICAL TRANSFORMER WITH UNIDIRECTIONAL FLUX COMPENSATION
Title (de)
ELEKTRISCHER TRANSFORMATOR MIT GLEICHFLUSS-KOMPENSATION
Title (fr)
TRANSFORMATEUR ÉLECTRIQUE AVEC COMPENSATION DU FLUX CONTINU
Publication
Application
Priority
EP 2007055728 W 20070612
Abstract (en)
[origin: WO2008151661A1] Electrical transformer with unidirectional flux compensation, characterized by the following features: a) the transformer (20) has a soft-magnetic core (4), on which, in addition to a primary and a secondary winding arrangement (1, 2), a compensation winding arrangement (3) is arranged, b) the compensation winding arrangement (3) is connected to a current control device (12, 13), which feeds a compensation current (16, 17) into the compensation winding arrangement (3) in accordance with a control signal (14, 15), which a magnetic field measurement device (30) provides from a measurement of a flux which is interlinked with a current in the primary or secondary winding arrangement, in such a way that the effect of said compensation current in the core (4) is in the opposite direction to a magnetic unidirectional flux (5).
IPC 8 full level
H01F 27/34 (2006.01); H01F 27/38 (2006.01)
CPC (source: EP US)
H01F 27/34 (2013.01 - EP US); H01F 27/38 (2013.01 - EP US); H01F 27/345 (2013.01 - EP US); H01F 27/385 (2013.01 - EP US)
Citation (search report)
See references of WO 2008151661A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
WO 2008151661 A1 20081218; CN 101681716 A 20100324; EP 2156448 A1 20100224; EP 2156448 B1 20170816; ES 2647679 T3 20171226; US 2010194373 A1 20100805; US 8314674 B2 20121120
DOCDB simple family (application)
EP 2007055728 W 20070612; CN 200780053317 A 20070612; EP 07730062 A 20070612; ES 07730062 T 20070612; US 66371007 A 20070612