Combined interrupter disconnect switch blade for high voltage sw

Details Combined interrupter disconnect switch blade for high voltage sw Combined interrupter disconnect switch blade for high voltage sw

1994-06-17

1997-12-09

Scott, J. R.

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Multiple break

218 7, 218 45, 218 67, 218 84, H01H 3314, H01H 3359, H01H 3370

Patent

active

056963645

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.

REFERENCES:
patent: 3674956 (1972-07-01), Erni
patent: 4319105 (1982-03-01), Lott et al.
patent: 4752859 (1988-06-01), Chabala et al.
patent: 4983792 (1991-01-01), Rogers et al.

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