Medium tension circuit breaking having high nominal current
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United States of America Patent
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Feb 26, 1991
Grant Date -
N/A
app pub date -
May 21, 1990
filing date -
May 19, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dielectric blast gas circuit breaker comprising a main fixed contact, a main arcing contact, and moving equipment including, in particular, a moving arcing contact and blast means, wherein the circuit breaker includes a moving main contact which is disunited from the moving equipment and which is implemented by means of a short cylindrical element associated with means communicating a speed thereto during circuit breaking which is lower than the speed of the moving equipment. The invention is applicable to medium tension circuit breakers having a high nominal current, such as the circuit breakers used in a power station.
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