EP 0517295 B1 19971217 - Medium voltage switch with three positions insulated in sulphur hexafluoride

Title (en)

Medium voltage switch with three positions insulated in sulphur hexafluoride

Title (de)

Schwefelhexafluoridisolierter Mittelspannungsschalter mit drei Positionen

Title (fr)

Commutateur à moyenne tension à trois positions isolé dans de l'hexafluorure de soufre

Publication

EP 0517295 B1 19971217 (EN)

Application

EP 92201448 A 19920521

Priority

IT MI911435 A 19910524
IT MI911436 A 19910524
IT MI911652 A 19910617

Abstract (en)

[origin: EP0517295A2] A medium voltage operating-isolating switch with three positions insulated in sulphur hexafluoride comprising a set of three poles, each pole comprising a fixed contact (14) and a mobile contact (26), the fixed contact carrying an associated male arcing contact (17) and the mobile contact being arranged on a pivoted arm (25) rotatable between a first closed position in engagement with the fixed contact, a second isolated position and a third earthed position. The mobile and fixed contacts of the set of three poles are arranged on three insulating base support elements (11) fixed to a single support beam (12), a relative cylinder (13) which pumps the sulphur hexafluoride into the insulating nozzle (15) being associated via an insulated lever with each of the arms carrying the mobile contacts, a metal draining element (44) being provided between each of the insulating support elements and the pumping cylinders.

IPC 1-7

H01H 33/91; H01H 33/02; H01H 33/53; H02B 13/075; H02B 13/035

IPC 8 full level

H01H 33/02 (2006.01); H01H 33/91 (2006.01); H01H 33/915 (2006.01); H01H 9/10 (2006.01); H01H 31/00 (2006.01); H01H 33/88 (2006.01)

CPC (source: EP)

H01H 33/022 (2013.01); H01H 33/91 (2013.01); H01H 9/102 (2013.01); H01H 31/003 (2013.01); H01H 33/886 (2013.01)

Citation (examination)

EP 0093225 A2 19831109 - FELTEN & GUILLEAUME ENERGIE [DE]
EP 0201695 A2 19861120 - BBC BROWN BOVERI & CIE [DE]
DE 850315 C 19520922 - FORGES ATELIERS CONST ELECTR
DE 8115913 U1 19810806

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IT LI LU NL PT SE

DOCDB simple family (publication)

EP 0517295 A2 19921209; EP 0517295 A3 19930310; EP 0517295 B1 19971217; AT E161356 T1 19980115; DE 69223549 D1 19980129; DE 69223549 T2 19980723; ES 2113401 T3 19980501

DOCDB simple family (application)

EP 92201448 A 19920521; AT 92201448 T 19920521; DE 69223549 T 19920521; ES 92201448 T 19920521