EP 2686856 B1 20150408 - ON-LOAD TAP CHANGER
Title (en)
ON-LOAD TAP CHANGER
Title (de)
LASTSTUFENSCHALTER
Title (fr)
CHANGEUR DE PRISES EN CHARGE
Publication
Application
Priority
- DE 102011013749 A 20110312
- EP 2012051963 W 20120206
Abstract (en)
[origin: WO2012123187A1] The invention relates to an on-load tap changer for switching between winding taps of a step transformer without interruption, comprising a separate selector for preselecting the winding tap to be switched to without control current, and a separate load transfer switch for actually transferring the load from the previous to the preselected new winding tap. The invention further relates to an energy store having at least one energy store spring that is first tensioned for each load transfer by a rotating drive shaft and that abruptly actuates the load transfer switch after being triggered. According to the invention, a gear is provided by means of which the energy store can be tensioned. A first mechanical freewheel is provided between the gear and the energy store, such that the energy store can be tensioned after a time delay, and a further mechanical freewheel (17) is provided between the energy store and a step-by-step motion linkage actuating the load transfer switch.
IPC 8 full level
H01H 9/00 (2006.01)
CPC (source: EP US)
H01H 3/44 (2013.01 - EP US); H01H 9/0027 (2013.01 - EP US)
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 102011013749 A1 20120913; DE 102011013749 B4 20150319; CN 103430267 A 20131204; CN 103430267 B 20160323; EP 2686856 A1 20140122; EP 2686856 B1 20150408; HK 1189421 A1 20140606; UA 110959 C2 20160310; US 2013341166 A1 20131226; US 9251971 B2 20160202; WO 2012123187 A1 20120920
DOCDB simple family (application)
DE 102011013749 A 20110312; CN 201280012957 A 20120206; EP 12702545 A 20120206; EP 2012051963 W 20120206; HK 14102306 A 20140307; UA A201310912 A 20120206; US 201214001064 A 20120206