Global Patent Index - EP 0472527 B1

EP 0472527 B1 19940316 - VALVE CHOKE, ESPECIALLY FOR HIGH-VOLTAGE DC TRANSMISSION SYSTEMS.

Title (en)

VALVE CHOKE, ESPECIALLY FOR HIGH-VOLTAGE DC TRANSMISSION SYSTEMS.

Title (de)

VENTILDROSSEL, INSBESONDERE FÜR HOCHSPANNUNGS-GLEICHSTROM-ÜBERTRAGUNGSANLAGEN.

Title (fr)

INDUCTANCE DE VALVE, EN PARTICULIER POUR LES INSTALLATIONS DE TRANSMISSION DE COURANT CONTINU A HAUTE TENSION.

Publication

EP 0472527 B1 19940316

Application

EP 90905426 A 19900405

Priority

  • DE 8906224 U 19890519
  • EP 89109073 A 19890519

Abstract (en)

[origin: WO9014674A1] To provide a highly compact valve choke which can be reliably liquid-cooled and operates quietly even at high induction rates, with a choke core fitted inside a plastic bearing frame and a winding (primary winding 5) surrounding it on all sides at a distance from it, the choke core (1; 2) is surrounded on all sides by a noise-damping insulating capsule (3; 4) acting as the bearing frame which, in turn, is surrounded by the winding (primary winding 5). In one embodiment, the insulating capsule consists of two trouser-shaped insulated capsules (3 and 4) with their open ''legs'' facing one another and the ''waist'' apertures of which can be closed by a cover (31 and 41) after ther insertion of a U-shaped part core (1 and 2).

IPC 1-7

H01F 27/33; H01F 27/26; H01F 27/30; H01F 27/24

IPC 8 full level

H01F 27/24 (2006.01); H01F 27/25 (2006.01); H01F 27/26 (2006.01); H01F 27/30 (2006.01); H01F 27/33 (2006.01)

CPC (source: EP)

H01F 27/25 (2013.01); H01F 27/266 (2013.01); H01F 27/303 (2013.01); H01F 27/306 (2013.01); H01F 27/33 (2013.01)

Citation (examination)

EP 2233954 A1 20100929 - BROTHER IND LTD [JP]

Designated contracting state (EPC)

AT CH DE FR GB IT LI SE

DOCDB simple family (publication)

WO 9014674 A1 19901129; DE 59005031 D1 19940421; EP 0472527 A1 19920304; EP 0472527 B1 19940316

DOCDB simple family (application)

DE 9000268 W 19900405; DE 59005031 T 19900405; EP 90905426 A 19900405