EP 3827271 A1 20210602 - TESTING DEVICE, METHOD AND SYSTEM FOR TESTING A MULTIPHASE TAP CHANGER OF A MULTIPHASE TRANSFORMER
Title (en)
TESTING DEVICE, METHOD AND SYSTEM FOR TESTING A MULTIPHASE TAP CHANGER OF A MULTIPHASE TRANSFORMER
Title (de)
PRÜFVORRICHTUNG, VERFAHREN UND SYSTEM ZUM PRÜFEN EINES MEHRPHASEN-STUFENSCHALTERS EINES MEHRPHASEN-TRANSFORMATORS
Title (fr)
DISPOSITIF DE CONTRÔLE, PROCÉDÉ ET SYSTÈME DE CONTRÔLE D'UN COMMUTATEUR À PLOTS POLYPHASÉ D'UN TRANSFORMATEUR POLYPHASÉ
Publication
Application
Priority
- AT 506532018 A 20180726
- EP 2019065207 W 20190611
Abstract (en)
[origin: WO2020020529A1] The invention relates to a method, a testing device and a system for testing a multiphase tap changer of a multiphase transformer. In the method, one test current per phase of the multiphase transformer is fed into a primary winding via the multiphase tap changer by means of a test signal source of the testing device. In addition, the secondary winding of at least two phases is short-circuited. Then the multiphase tap changer is actuated in order to switch simultaneously between at least one tap and an additional tap of the primary winding for each of the at least two phases. During actuation, an electrical voltage is detected with respect to the primary windings for the at least two phases, said voltage dropping across the primary winding and the tap changer.
IPC 8 full level
G01R 31/327 (2006.01)
CPC (source: AT EP)
G01R 31/3271 (2013.01 - AT EP); G01R 31/62 (2020.01 - EP); H01H 2009/0061 (2013.01 - EP)
Citation (search report)
See references of WO 2020020529A1
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 2020020529 A1 20200130; AT 521563 A1 20200215; EP 3827271 A1 20210602
DOCDB simple family (application)
EP 2019065207 W 20190611; AT 506532018 A 20180726; EP 19729546 A 20190611