High-voltage switches with arc preventing or extinguishing devic – Arc preventing or extinguishing devices – Air-current blowout
Patent
1998-10-01
2000-01-18
Donovan, Lincoln
High-voltage switches with arc preventing or extinguishing devic
Arc preventing or extinguishing devices
Air-current blowout
218140, 218154, 218 78, H01H 3318, H01H 3370, H01H 3382
Patent
active
06015960&
ABSTRACT:
A compressed gas interrupter having a first contact piece having a hollow wear contact into which, during closure, there is inserted a rod-shaped wear contact provided on a second contact piece, an insulating nozzle on the same axis as the two contact pieces and fixed to the first contact piece with the throat of the nozzle having the wear contact of the second contact piece passing therethrough on closure, the nozzle connecting a gas compression chamber to an exhaust chamber, the wear contact of the second contact piece being movable along an axis and being displaced in the opposite direction to the wear contact of the first contact piece by a rack mechanism organized to transmit movement in opposite directions from the first contact piece to the second contact piece. The rack mechanism is disposed upstream from the throat of the nozzle so as to be situated off the path of the hot gases leaving the nozzle on interruption.
REFERENCES:
patent: 525332 (1894-09-01), Card
patent: 3665135 (1972-05-01), Boersma et al.
patent: 3883709 (1975-05-01), Cole
patent: 3896282 (1975-07-01), Chabala
patent: 4211902 (1980-07-01), Tsuchida
patent: 5578806 (1996-11-01), Hofbauer et al.
patent: 5808257 (1998-09-01), Thuries
Girodet Alain
Vittoz Marc
Donovan Lincoln
GEC Alsthom T&D SA
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