EP 3404678 A1 20181121 - HIGH VOLTAGE ASSEMBLY AND METHOD TO OPERATE THE HIGH VOLTAGE ASSEMBLY
Title (en)
HIGH VOLTAGE ASSEMBLY AND METHOD TO OPERATE THE HIGH VOLTAGE ASSEMBLY
Title (de)
HOCHSPANNUNGSANORDNUNG UND VERFAHREN ZUM BETREIBEN DER HOCHSPANNUNGSANORDNUNG
Title (fr)
ENSEMBLE À HAUTE TENSION ET PROCÉDÉ DE FONCTIONNEMENT DE L'ENSEMBLE À HAUTE TENSION
Publication
Application
Priority
EP 17171508 A 20170517
Abstract (en)
A high voltage assembly (2) comprises: - a sealed compartment (4) containing an active component (6) at least partly surrounded by an insulation liquid (8); - a free breathing conservator (10); - a Buchholz relay (12) arranged above a level (L14) of a cover (14) of the sealed compartment (4); and a pipe arrangement (16) comprising: - a first pipe section (18) connecting the interior of the sealed compartment (4) at the cover (14) of the sealed compartment (4) to the Buchholz relay (12); and - a second pipe section (20) connecting the Buchholz relay (12) with the interior of the free breathing conservator (10) at a lower portion (22) of the free breathing conservator (10), wherein in a normal operating state (N) of the high voltage assembly (2) a hydraulic diameter of the pipe arrangement (16) is maintained constant and the level of insulation liquid in the conservator (10) is maintained below the level (L14) of the cover (14) of the sealed compartment (4).
IPC 8 full level
H01F 27/14 (2006.01); H01F 27/40 (2006.01)
CPC (source: EP)
H01F 27/14 (2013.01); H01F 2027/404 (2013.01)
Citation (applicant)
EP 3109871 A1 20161228 - ABB TECHNOLOGY LTD [CH]
Citation (search report)
- [IA] US 2008197955 A1 20080821 - FINDEISEN JORG [DE]
- [A] GB 693448 A 19530701 - BRITISH ELECTRIC TRANSFORMER C
- [A] FR 84247 E 19641224 - ALSTHOM CGEE
- [AD] EP 3109871 A1 20161228 - ABB TECHNOLOGY LTD [CH]
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 3404678 A1 20181121; EP 3404678 B1 20210630; WO 2018210544 A1 20181122
DOCDB simple family (application)
EP 17171508 A 20170517; EP 2018060661 W 20180426