EP 3005383 B1 20191009 - APPARATUS FOR REDUCING A MAGNETIC UNIDIRECTIONAL FLUX COMPONENT IN THE CORE OF A TRANSFORMER
Title (en)
APPARATUS FOR REDUCING A MAGNETIC UNIDIRECTIONAL FLUX COMPONENT IN THE CORE OF A TRANSFORMER
Title (de)
VORRICHTUNG ZUR VERRINGERUNG EINES MAGNETISCHEN GLEICHFLUSS-ANTEILS IM KERN EINES TRANSFORMATORS
Title (fr)
DISPOSITIF DE RÉDUCTION D'UNE COMPOSANTE CONTINUE DU FLUX MAGNÉTIQUE DANS LE NOYAU D'UN TRANSFORMATEUR
Publication
Application
Priority
EP 2013060948 W 20130528
Abstract (en)
[origin: WO2014191023A1] The invention relates to an apparatus for reducing a magnetic unidirectional flux component in the core of a transformer, in particular a three-phase transformer, comprising a plurality of compensation windings (K1, K2, K3) which are magnetically coupled to the core of the transformer. Said apparatus is characterized in that - a controllable current source (S) for feeding current into the compensation windings (K1, K2, K3) is provided and is arranged electrically in series with the compensation windings (K1, K2, K3), specifically with the neutral point (P1) thereof, which is formed by the inputs of the compensation windings (K1, K2, K3), and - a neutral earthing transformer (H) is provided and is electrically connected to the outputs of the compensation windings (K1, K2, K3), and - the current source (S) electrically connects the neutral point (P1) of the compensation windings (K1, K2, K3) and the neutral point (P2) of the neutral earthing transformer (H) to one another.
IPC 8 full level
H01F 27/38 (2006.01); H01F 27/42 (2006.01)
CPC (source: EP US)
H01F 27/28 (2013.01 - US); H01F 27/38 (2013.01 - EP US); H01F 27/42 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2014191023 A1 20141204; BR 112015029477 A2 20170725; BR 112015029477 B1 20210629; BR 112015029477 B8 20230425; CA 2910674 A1 20141204; CA 2910674 C 20180313; CN 105229759 A 20160106; CN 105229759 B 20170630; EP 3005383 A1 20160413; EP 3005383 B1 20191009; KR 101806293 B1 20171207; KR 20160012223 A 20160202; US 10083789 B2 20180925; US 2016125999 A1 20160505
DOCDB simple family (application)
EP 2013060948 W 20130528; BR 112015029477 A 20130528; CA 2910674 A 20130528; CN 201380076964 A 20130528; EP 13726491 A 20130528; KR 20157036639 A 20130528; US 201314890383 A 20130528