Title (en)

Electrical bushing

Title (de)

Elektrische Durchführung

Title (fr)

Traversée électrique

Publication

EP 3007184 A1 20160413 (EN)

Application

EP 14187731 A 20141006

Priority

EP 14187731 A 20141006

Abstract (en)

The present disclosure relates to an electrical bushing (1) comprising an electrically insulating sleeve (2) having a central longitudinal through hole (4) surrounding a central longitudinal axis (5) of the bushing, and an electrical conductor (3) positioned through the central longitudinal through hole (4) of the sleeve. The conductor comprises a longitudinal outer tube and a longitudinal inner tube (3b), concentrically located within the outer tube (3a), such that a tubular space is formed between the outer tube and the inner tube. A first end of the tubular space is delimited by a tube spacer (10) between the outer tube and the inner tube, and a second end of the tubular space is capped to form an enclosed tubular space. The enclosed tubular space contains a heat transfer fluid whereby a heat-pipe (6) is formed between the outer tube and the inner tube of the conductor. The outer tube extends longitudinally beyond the heat-pipe delimited by the tube spacer at the first end of the tubular space, and the inner tube has a design at said first end such that fluid can pass from between the outer tube and the inner tube into a central longitudinal space (9) formed in the inner tube, without passing longitudinally beyond the extension of the outer tube.

IPC 8 full level

H01B 17/54 (2006.01); F28D 15/02 (2006.01); H01B 17/26 (2006.01)

CPC (source: EP)

F28D 15/0233 (2013.01); H01B 17/54 (2013.01); H01B 17/26 (2013.01)

Citation (applicant)

• CN 101369483 A 20090218 - INST ELECTRICAL ENG CAS [CN]
• WO 2007107119 A1 20070927 - BEIJING RUIHENG SUPER HIGH VOL [CN], et al

Citation (search report)

• [A] US 3627899 A 19711214 - MOORE CURTIS L
• [AD] EP 2704157 A1 20140305 - ABB TECHNOLOGY LTD [CH]
• [A] JP S529889 A 19770125 - HITACHI LTD

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)

EP 3007184 A1 20160413; EP 3007184 B1 20170628; CN 106716560 A 20170524; CN 106716560 B 20180713; WO 2016055329 A1 20160414

DOCDB simple family (application)

EP 14187731 A 20141006; CN 201580051006 A 20150930; EP 2015072579 W 20150930