Global Patent Index - EP 2406871 A1

EP 2406871 A1 20120118 - ROTATING TRANSFORMER FOR SUPPLYING THE FIELD WINDING IN A DYNAMOELECTRIC MACHINE

Title (en)

ROTATING TRANSFORMER FOR SUPPLYING THE FIELD WINDING IN A DYNAMOELECTRIC MACHINE

Title (de)

ROTIERENDER TRANSFORMATOR ZUR VERSORGUNG DER FELDWICKLUNG IN EINER DYNAMOELEKTRISCHEN MASCHINE

Title (fr)

TRANSFORMATEUR TOURNANT POUR L'ALIMENTATION DU BOBINAGE D'EXCITATION D'UNE MACHINE DYNAMOÉLECTRIQUE

Publication

EP 2406871 A1 20120118 (DE)

Application

EP 10709470 A 20100309

Priority

  • EP 2010052940 W 20100309
  • CH 3642009 A 20090311

Abstract (en)

[origin: WO2010102987A1] The invention relates to a rotating transformer that is suitable in particular for supplying current to the excitation winding of a synchronous machine. A stationary primary winding arrangement (3) is fed by an alternating voltage source (4). A secondary winding arrangement (2) is attached to a rotor (1), which secondary winding arrangement is inductively coupled with the primary winding arrangement. In order to enable a simple installation, the primary winding arrangement comprises at least two primary windings (32), which each extend over a predetermined sector relative to the direction of rotation of the rotor. It thus becomes possible to install the primary windings separately and to arrange the device in a space-saving manner in areas of a dynamoelectric machine otherwise remaining unused.

IPC 8 full level

H02K 19/28 (2006.01); H01F 38/18 (2006.01)

CPC (source: EP US)

H01F 38/18 (2013.01 - EP US); H02K 11/0094 (2013.01 - EP US); H02K 19/26 (2013.01 - EP US); H02K 19/36 (2013.01 - EP US); H02K 11/042 (2013.01 - EP US)

Citation (search report)

See references of WO 2010102987A1

Designated contracting state (EPC)

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 SE SI SK SM TR

DOCDB simple family (publication)

WO 2010102987 A1 20100916; CH 700533 A1 20100915; CN 102349221 A 20120208; EP 2406871 A1 20120118; US 2012038308 A1 20120216; US 8228010 B2 20120724

DOCDB simple family (application)

EP 2010052940 W 20100309; CH 3642009 A 20090311; CN 201080011507 A 20100309; EP 10709470 A 20100309; US 201113229793 A 20110912