Global Patent Index - EP 0310538 B1

EP 0310538 B1 19920617 - ELECTRICAL HIGH-VOLTAGE CIRCUIT BREAKER

Title (en)

ELECTRICAL HIGH-VOLTAGE CIRCUIT BREAKER

Publication

EP 0310538 B1 19920617 (DE)

Application

EP 88730209 A 19880913

Priority

DE 3733465 A 19870930

Abstract (en)

[origin: EP0310538A1] In an electrical high-voltage power circuit breaker with a hydraulic drive, the piston rod (6) is guided out of the hydraulic cylinder, in order to operate the moving switchpiece via a guide transmission and a switch rod. For this purpose, the connecting rod (8) leading to the guide transmission is fixed by a transverse bolt (22) in a fork head (7), into which the piston rod (6) is screwed. The fork head (7) extends into a protective tube (11), at least with a guide ring (13) provided on its end face (12) facing the piston rod (6). In order to absorb the transverse forces occurring because of the guide transmission, the guide ring (13) has a close fit to the internal diameter (15) of the protective tube (11). It is located in an end-face annular projection (14) of the fork head (7), which is separated from the thread (17) for the piston rod (6) by a constriction (18). In this region there are furthermore provided longitudinal slots (19) which can be bridged by clamping screws (23). These clamping screws (23) secure the adjusted screwing-in of the piston rod (6) into the thread (17) against rotation. Electrical high-voltage power circuit breaker, particularly compressed-gas SF6 high-voltage power circuit breaker for open-air installation. <IMAGE>

IPC 1-7

H01H 3/46

IPC 8 full level

H01H 3/46 (2006.01); H01H 33/42 (2006.01)

CPC (source: EP)

H01H 3/46 (2013.01)

Designated contracting state (EPC)

CH DE LI SE

DOCDB simple family (publication)

EP 0310538 A1 19890405; EP 0310538 B1 19920617; DE 3733465 A1 19890420; DE 3872142 D1 19920723; DE 8717769 U1 19891221; JP H01115019 A 19890508

DOCDB simple family (application)

EP 88730209 A 19880913; DE 3733465 A 19870930; DE 3872142 T 19880913; DE 8717769 U 19870930; JP 24892488 A 19880929