EP 3776780 A1 20210217 - METHOD AND DEVICE FOR IDENTIFYING AN INTER-TURN SHORT CIRCUIT IN PARALLEL WINDINGS
Title (en)
METHOD AND DEVICE FOR IDENTIFYING AN INTER-TURN SHORT CIRCUIT IN PARALLEL WINDINGS
Title (de)
VERFAHREN UND VORRICHTUNG ZUR ERKENNUNG EINES WINDUNGSSCHLUSSES BEI PARALLEL ANGEORDNETEN WICKLUNGEN
Title (fr)
PROCÉDÉ ET DISPOSITIF DE DÉTECTION D'UN COURT-CIRCUIT ENTRE SPIRES DANS DES ENROULEMENTS DISPOSÉS EN PARALLÈLE
Publication
Application
Priority
EP 2018062902 W 20180517
Abstract (en)
[origin: WO2019219196A1] The invention relates to a method for monitoring an electrical assembly (1) which comprises a plurality of electrical coils (L1, L2, L3) connected in parallel. In the method, the difference in current (ΔI1, ΔI2, ΔI3) between the current (I1, I2, I3) flowing through the coils and the mean value (lav) of the currents (I1, I2, I3) flowing through the coils is ascertained for each of the coils (L1, L2, L3) connected in parallel. The differences in current (ΔI1, ΔI2, ΔI3) are used to identify when an inter-turn short circuit occurs in one of the coils.
IPC 8 full level
G01R 31/62 (2020.01); G01R 31/72 (2020.01); H02H 3/04 (2006.01); H02H 3/44 (2006.01); H02H 7/04 (2006.01)
CPC (source: EP US)
G01R 31/52 (2020.01 - EP US); G01R 31/62 (2020.01 - EP US); G01R 31/72 (2020.01 - EP US); H02H 3/04 (2013.01 - EP); H02H 3/44 (2013.01 - EP US); H02H 7/04 (2013.01 - EP)
Citation (search report)
See references of WO 2019219196A1
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)
WO 2019219196 A1 20191121; CA 3100210 A1 20191121; CA 3100210 C 20211116; CN 112154585 A 20201229; CN 112154585 B 20220225; EP 3776780 A1 20210217; US 11131719 B2 20210928; US 2021208207 A1 20210708
DOCDB simple family (application)
EP 2018062902 W 20180517; CA 3100210 A 20180517; CN 201880093487 A 20180517; EP 18727205 A 20180517; US 201817056089 A 20180517