Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1988-10-25
1990-11-27
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200148A, H01H 3342, H01H 3388
Patent
active
049738062
ABSTRACT:
The compressed-gas breaker has a movable contact member (1) and a fixed contact member (2) having in each case at least one arcing contact (6, 7) as well as, fixed on the movable contact member (1), a pressure space (10) of a volume independent of the switching travel and storing arc-compressed quenching gas in breaking, and has an insulating nozzle (8) arranged coaxially to the two contact members (1, 2). With this breaker, the parting speed of the arcing contacts (6, 7) is increased significantly with respect to the drive speed without an appreciable increase in its drive energy and without changing its quenching geometry. The arcing contact (7) of the fixed contact member (2) being guided displaceably in axial direction in a sliding contact (14) and being part of a converter element is operated by the movable contact member (7) and arranged downstream of the nozzle constriction (9) of the insulating nozzle (8). In breaking, this converter element transfers the movement of the movable contact member (1) oppositely onto the arcing contact (7) of the fixed contact member (2).
REFERENCES:
patent: 2055312 (1936-09-01), Ruppel
patent: 2330820 (1943-10-01), Fernier
patent: 3896282 (1975-07-01), Chabala
patent: 4342891 (1982-08-01), Solver
Kirchesch Peter
Meier Arnold
BBC Brown Boveri AG
Macon Robert S.
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