EP 2532016 B1 20150826 - CURRENT-LIMITING DEVICE HAVING A CHANGEABLE COIL IMPEDANCE
Title (en)
CURRENT-LIMITING DEVICE HAVING A CHANGEABLE COIL IMPEDANCE
Title (de)
VORRICHTUNG ZUR STROMBEGRENZUNG MIT EINER VERÄNDERBAREN SPULENIMPEDANZ
Title (fr)
DISPOSITIF DE LIMITATION DE COURANT AYANT UNE IMPÉDANCE DE BOBINE VARIABLE
Publication
Application
Priority
- DE 102010007087 A 20100206
- EP 2010007837 W 20101221
Abstract (en)
[origin: WO2011095199A1] The invention relates to a device for limiting current having variable coil impedance. A current limiter is proposed, wherein by using a superconducting coil (5) inside a choke coil (1), the inductance and thus the impedance of the choke coil are significantly reduced. This is accomplished by means of currents that are induced in the superconducting coil and that compensate the magnetic field of the choke coil during normal operation. If a certain current value is exceeded, the superconductor goes into the normally-conducting state and increases the inductance, by means of which the current is limited. After the excessively high current is switched off, the superconductor automatically returns to the superconducting state after a few seconds, and the normal operation can be resumed. A special advantage of the current limiter is the compact design thereof, so that the current limiter is suitable both for the original equipment of energy networks and for retrofitting existing networks.
IPC 8 full level
H01F 38/02 (2006.01); H02H 9/02 (2006.01)
CPC (source: EP US)
H01F 27/02 (2013.01 - US); H01F 27/08 (2013.01 - US); H01F 38/023 (2013.01 - EP US); H01F 2006/001 (2013.01 - EP US)
Citation (examination)
- JP H05145128 A 19930611 - AGENCY IND SCIENCE TECHN
- JP H05145273 A 19930611 - HITACHI CABLE
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 102010007087 A1 20110811; EP 2532016 A1 20121212; EP 2532016 B1 20150826; JP 2013519219 A 20130523; JP 5907894 B2 20160426; US 2012306606 A1 20121206; US 9583258 B2 20170228; WO 2011095199 A1 20110811
DOCDB simple family (application)
DE 102010007087 A 20100206; EP 10805601 A 20101221; EP 2010007837 W 20101221; JP 2012551507 A 20101221; US 201013577272 A 20101221