Global Patent Index - EP 2907210 A2

EP 2907210 A2 20150819 - METHOD FOR REGULATING THE VOLTAGE OF A TRANSFORMER

Title (en)

METHOD FOR REGULATING THE VOLTAGE OF A TRANSFORMER

Title (de)

VERFAHREN ZUR SPANNUNGSREGELUNG EINES TRANSFORMATORS

Title (fr)

PROCÉDÉ DE RÉGULATION DE LA TENSION D'UN TRANSFORMATEUR

Publication

EP 2907210 A2 20150819 (DE)

Application

EP 13765717 A 20130919

Priority

  • DE 102012109639 A 20121010
  • EP 2013069446 W 20130919

Abstract (en)

[origin: WO2014056695A2] The invention relates to a method for regulating the voltage of a transformer (1) having different winding taps (3). The problem addressed by the invention is that of providing a method with which different load flow directions can be regulated with conventional transformers (1) and voltage regulators (7) in order to ensure a safe and reliable supply of voltage. The general inventive concept consists in determining, using a method in which a quadrant system (11) is used, the phase angle of the conduction current (I) and thus the load flow direction, thereby preventing deviation from the voltage range as a result of power input that is too high, by controlling the load tap changer (4).

IPC 8 full level

H02J 3/00 (2006.01)

CPC (source: CN EP US)

G05F 1/147 (2013.01 - EP US); H01F 27/29 (2013.01 - US); H02J 3/12 (2013.01 - CN EP US); H02J 3/1878 (2013.01 - CN EP US); Y02E 40/30 (2013.01 - EP US)

Citation (search report)

See references of WO 2014056695A2

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 2014056695 A2 20140417; WO 2014056695 A3 20140814; CN 104756344 A 20150701; EP 2907210 A2 20150819; HK 1214037 A1 20160715; US 2015261232 A1 20150917; US 9557753 B2 20170131

DOCDB simple family (application)

EP 2013069446 W 20130919; CN 201380052690 A 20130919; EP 13765717 A 20130919; HK 16101870 A 20160219; US 201314428176 A 20130919