Electricity: electrical systems and devices – Control circuits for electromagnetic devices – For relays or solenoids
Patent
1990-02-07
1992-02-18
Wong, Peter S.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
For relays or solenoids
361 1, 361117, 361175, 200148R, H01H 4724
Patent
active
050899317
ABSTRACT:
A safety device for an electrical apparatus comprising an enclosure filled with gas under pressure, the safety device comprising first means for detecting the appearance of an arc inside the enclosure, and second means controlled by the first means to establish a path for the gas through the enclosure when the first means has detected an arc for a given length of time.
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Dupraz Jean-Pierre
Martin Joseph
Moncorge Jean-Paul
Perrusset Yves
Taponat Didier
Davidson Ben M.
GEC Alsthom SA
Wong Peter S.
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