Straight spring operating mechanism for high-voltage circuit-breakers
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United States of America Patent
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May 26, 1998
Grant Date -
N/A
app pub date -
Apr 9, 1997
filing date -
Apr 10, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An operating mechanism for a circuit-breaker, for carrying out an O-C-O cycle, followed by a C-O cycle, includes a tripping spring and a setting spring, coaxial with each other. Expansion of the setting spring compresses the tripping spring. The setting spring is compressed by an arrangement coaxial with the springs including a reversible electric motor.
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