EP 3102958 A1 20161214 - METHOD AND DEVICE FOR DETECTING WINDING SHORT CIRCUITS AND ELECTRIC MACHINE
Title (en)
METHOD AND DEVICE FOR DETECTING WINDING SHORT CIRCUITS AND ELECTRIC MACHINE
Title (de)
VERFAHREN UND VORRICHTUNG ZUM DETEKTIEREN VON WINDUNGSSCHLÜSSEN SOWIE ELEKTRISCHE MASCHINE
Title (fr)
PROCÉDÉ ET DISPOSITIF DE DÉTECTION DE COURT-CIRCUIT ENTRE SPIRES ET MACHINE ÉLECTRIQUE
Publication
Application
Priority
- EP 14167158 A 20140506
- EP 2015057060 W 20150331
Abstract (en)
[origin: WO2015169512A1] The invention relates to an apparatus (1) for detecting interturn faults inside a rotor winding of a rotating electrical machine (2) with a measuring device (3), wherein the measuring device (3) comprises at least two measuring coils which are oriented differently in space such that, in the case of a measuring device (3) accordingly oriented with respect to the rotor winding, a voltage can be induced inside the first measuring coil by means of a first directional component of the magnetic flux density B of the rotating electrical machine (2) and a different voltage can be induced inside the further measuring coil by means of a further directional component of this magnetic flux density B, which directional component differs from the first directional component, characterized in that the at least two measuring coils oriented differently in space are arranged together on a head part (5) of the measuring device (3), with the result that interturn faults present on the rotor winding can be detected on the basis of temporal voltage profiles of the voltages induced in the two measuring coils.
IPC 8 full level
G01R 31/34 (2006.01); H02K 11/26 (2016.01)
CPC (source: CN EP US)
G01R 31/343 (2013.01 - EP US); G01R 31/346 (2013.01 - CN EP US); H02K 11/26 (2016.01 - US); H02P 29/02 (2013.01 - CN); H02P 29/0241 (2016.02 - EP US)
Citation (search report)
See references of WO 2015169512A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2942633 A1 20151111; CN 106255894 A 20161221; EP 3102958 A1 20161214; JP 2017515120 A 20170608; US 2017123007 A1 20170504; WO 2015169512 A1 20151112
DOCDB simple family (application)
EP 14167158 A 20140506; CN 201580023926 A 20150331; EP 15714791 A 20150331; EP 2015057060 W 20150331; JP 2016566685 A 20150331; US 201515306542 A 20150331