EP 2569785 A1 20130320 - TAP CHANGER FOR A TRANSFORMER
Title (en)
TAP CHANGER FOR A TRANSFORMER
Title (de)
UMSTELLER FÜR EINEN TRANSFORMATOR
Title (fr)
AJUSTEUR DE TENSION POUR TRANSFORMATEUR
Publication
Application
Priority
- DE 102010020138 A 20100511
- EP 2011000855 W 20110223
Abstract (en)
[origin: WO2011141078A1] The invention relates to a tap changer for a transformer, consisting of a plurality of mutually parallel, spaced-apart contact bars (2) which are arranged in a circle around a center longitudinal axis (MLA) and a contact arrangement (5) which is rotatable in relation to the contact bars (2). In order to produce a convection cooling effect, the contact bars (2) are at least partially hollow, each bar having at least one first opening (6) for a cooling medium to flow into the bar and at least one second opening (7) for a cooling medium to flow out and the first and second opening (6, 7) being arranged at a distance to each other along the center longitudinal axis (MLA).
IPC 8 full level
H01H 1/62 (2006.01); H01H 9/00 (2006.01); H01F 29/02 (2006.01); H01H 9/52 (2006.01)
CPC (source: EP)
H01H 1/62 (2013.01); H01H 9/0016 (2013.01); H01F 29/02 (2013.01); H01H 2009/523 (2013.01)
Citation (search report)
See references of WO 2011141078A1
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)
DE 102010020138 A1 20111117; DE 102010020138 B4 20150813; CN 102906839 A 20130130; EP 2569785 A1 20130320; WO 2011141078 A1 20111117
DOCDB simple family (application)
DE 102010020138 A 20100511; CN 201180023223 A 20110223; EP 11707088 A 20110223; EP 2011000855 W 20110223