Global Patent Index - EP 1159778 A1

EP 1159778 A1 2001-12-05 - TEMPORARY OVERVOLTAGE LIMITER FOR HIGH VOLTAGE TRANSMISSION SYSTEMS

Title (en)

TEMPORARY OVERVOLTAGE LIMITER FOR HIGH VOLTAGE TRANSMISSION SYSTEMS

Title (de)

TEMPORÄRER ÜBERSPANNUNGSBEGRENZER FÜR EIN HOCHSPANNUNGSÜBERTRAGUNGSSYSTEM

Title (fr)

DISPOSITIF DE LIMITATION DE SURTENSION TEMPORAIRE, DESTINE A DES SYSTEMES DE TRANSMISSION DE TENSIONS ELEVEES

Publication

EP 1159778 A1 (EN)

Application

EP 00904857 A

Priority

  • DK 0000062 W
  • DK PA199900281 A

Abstract (en)

[origin: WO0052805A1] The invention consists of a method to greatly enhance the Mvar absorption of a high voltage shunt reactor in response to excess Mvar suddenly appearing on a high voltage transmission system. A high voltage capacitor is connected in series with a shunt reactor in order to increase the reactor voltage, and thereby the Mvar absorption, as a function primarily of the capacitor value in combination with the dynamic impedance of the reactor in the saturated region of the reactor V/I characteristic. The new with the invention is that the Mvar absorption of the reactor is no longer dependent on the system voltage alone. The invention also includes a reactive device consisting of a multi phase shunt reactor with a capacitor connected in series with each phase.

IPC 1-7 (main, further and additional classification)

H02H 9/04; H02J 3/12

IPC 8 full level (invention and additional information)

H02J 3/18 (2006.01)

CPC (invention and additional information)

H02J 3/1821 (2013.01); Y02E 40/30 (2013.01)

Citation (search report)

See references of WO 0052805A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0052805 A1 20000908; AU 2658000 A 20000921; EP 1159778 A1 20011205

INPADOC legal status


2002-10-16 [18W] APPLICATION WITHDRAWN

- Date of withdrawal: 20020821

2001-12-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010824

2001-12-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-12-05 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI