13-09-2018 дата публикации
Номер: US20180261406A1
Принадлежит:
A medium-, high-, or very high-voltage circuit breaker (), comprising at least one arc-control chamber () and an outer casing () in which the arc-control chamber () is arranged. In the invention, the circuit breaker includes sealing ring () for sealing an opening () in a discharge cap () of the arc-control chamber (), the ring () being movable between a sealing position and a retracted position in which they allow the gas to pass, the circuit breaker being configured in such a manner that in the closed position, the sealing ring () are in their retracted position, and in such a manner that passage from the retracted position to the sealing position takes place during an operation of opening the circuit breaker. 18-. (canceled)91012141312. A medium- , high- , or very high-voltage circuit breaker () , comprising at least one arc-control chamber () and an outer casing () defining a space () in which the arc-control chamber () is arranged , said arc-control chamber comprising:{'b': 18', '20', '18', '20, 'i': a', 'a', 'b', 'b, 'a first set of electrical contacts (, ) and a second set of electrical contacts (, ), at least one of the first and second sets being movable in such a manner as to enable closing and opening operations of the circuit breaker;'}{'b': '19', 'an arc blast nozzle (); and'}{'b': 40', '13', '40', '40', '31', '40', '50, 'i': a', 'b, 'a discharge cap () situated in the space () and comprising an end wall () and a side wall () internally defining a gas-flow chamber () situated at least in part downstream from the blast nozzle, the discharge cap () including at least one opening () for discharging gas;'}{'b': 52', '50', '50', '52, 'the circuit breaker being characterized in that it includes sealing means () for sealing said opening (), said sealing means being movable between a sealing position in which they prevent the gas from passing through the opening (), and a retracted position in which they allow passage therethrough, the circuit breaker being ...
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