Combined interrupter disconnect switch blade for high voltage switch
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United States of America Patent
Stats
-
Dec 9, 1997
Grant Date -
N/A
app pub date -
Jun 17, 1994
filing date -
Dec 14, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A high voltage open-air switch has a movable disconnect switch blade which contains a circuit interrupter therein having interrupter contacts in series with the open air disconnect switch contacts. The circuit interrupter has a lower BIL rating than the switch. An operating mechanism causes the independent operation of the interrupter and disconnect switch such that there is a high speed opening of the interrupter contacts, followed by the low speed opening of the disconnect switch contacts, and a slow speed closing of the disconnect switch contacts followed by the high speed closing of the interrupter contacts. The switch can be adapted to numerous switch configurations and permits substantial savings in space by the reduced mounting space requirements for the interrupter assembly.
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