High-tension circuit-breaker with damper
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United States of America Patent
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Mar 2, 1999
Grant Date -
N/A
app pub date -
Sep 19, 1997
filing date -
Sep 23, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A high-tension circuit-breaker includes fixed contacts and a mobile assembly including mobile contacts. The mobile assembly is connected to an operating mechanism by an operating rod. The circuit-breaker includes a device for damping movement of the rod at the end of a tripping maneuver. This device includes a damper piston entrained by movement of the rod at the end of the tripping maneuver and moving in a cylinder in one direction such that the volume between the piston and an end wall of the cylinder increases during the maneuver, causing a pressure drop in this volume.
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