Global Patent Index - EP 0807946 B1

EP 0807946 B1 2001-12-12 - High-voltage gas-blast puffer type circuit-breaker

Title (en)

High-voltage gas-blast puffer type circuit-breaker

Title (de)

Hochspannungs-Blaskolbenschalter

Title (fr)

Disjoncteur à haute tension à auto-soufflage

Publication

EP 0807946 B1 (FR)

Application

EP 97401034 A

Priority

FR 9605912 A

Abstract (en)

[origin: EP0807946A1] The circuit-breaker has an envelope (1) preferably of porcelain filled with e.g. sulphur hexafluoride gas under pressure of several atmospheres. One arc contact (10) is part of the moving contact assembly integral with an inner tubular slider (6). The coaxial outer tube (8) carries the moving contact (11) surrounding a blowout (quenching) chamber (13) closed by a nozzle (12). A compression chamber (15) on the other side of a ring (9) is closed by an annular piston (14) sliding freely between a fixed stop (21) and one end of a helical spring (19). A ring (25) floats between a fixed washer (26) and a back-stop (28).

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

H01H 33/90

IPC 8 full level (invention and additional information)

H01H 33/90 (2006.01); H01H 33/915 (2006.01)

CPC (invention and additional information)

H01H 33/905 (2013.01)

Designated contracting state (EPC)

CH DE ES FR GB IT LI PT SE

EPO simple patent family

EP 0807946 A1 19971119; EP 0807946 B1 20011212; DE 69708966 D1 20020124; DE 69708966 T2 20020801; EG 21480 A 20011128; ES 2167691 T3 20020516; FR 2748598 A1 19971114; FR 2748598 B1 19980605; PT 807946 E 20020531; US 5898150 A 19990427

INPADOC legal status


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2002-01-24 [REF] CORRESPONDS TO:

- Document: DE 69708966 20020124

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