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US 12,482,617 B2Granted
Circuit breaker
AssigneeSchneider Electric Industries SAS
InventorRaimund Summer
Life of this patent
Estimating the term…
Abstract
A circuit breaker comprises a vacuum chamber in which a fixed contact and a movable contact are located. A compensating reservoir comprising a counter-pressure element is provided for a good contacting.
Claims18
A circuit breaker comprising:
- at least one vacuum chamber that has a longitudinal axis, a fixed and a movable contact, said movable contact being acted on by an environmental pressure of the vacuum chamber, and
- a drive mechanism for moving the movable contact between an open position and a closed position,
- wherein the movable contact is connected to at least one counter-pressure element outside the vacuum chamber, said counter-pressure element being a movable component of a compensating reservoir that is pressure-tight sealed and that has an inner pressure,
- wherein the vacuum chamber and the counter-pressure element are arranged in a gas-insulated compartment, and
- wherein the inner pressure in the compensating reservoir is smaller than an inner pressure in the gas-insulated compartment.
2 more elements
A circuit breaker comprising:
- at least one vacuum chamber that has a longitudinal axis, a fixed and a movable contact, said movable contact being acted on by an environmental pressure of the vacuum chamber, and
- a drive mechanism for moving the movable contact between an open position and a closed position,
- wherein the movable contact is connected to at least one counter-pressure element outside the vacuum chamber, said counter-pressure element being a movable component of a compensating reservoir that is pressure-tight sealed and that has an inner pressure, and
- wherein a connection between the counter-pressure element and the movable contact has a rotary lever.
1 more element
A circuit breaker comprising:
- at least one vacuum chamber that has a longitudinal axis, a fixed and a movable contact, said movable contact being acted on by an environmental pressure of the vacuum chamber, and
- a drive mechanism for moving the movable contact between an open position and a closed position,
- wherein the movable contact is connected to at least one counter-pressure element outside the vacuum chamber, said counter-pressure element being a movable component of a compensating reservoir that is pressure-tight sealed and that has an inner pressure, and
- wherein a plurality of vacuum chambers are provided whose movable contacts are connected to a single counter-pressure element.
1 more element
A circuit breaker comprising:
- at least one vacuum chamber that has a longitudinal axis, a fixed and a movable contact, said movable contact being acted on by an environmental pressure of the vacuum chamber, and
- a drive mechanism for moving the movable contact between an open position and a closed position,
- wherein the movable contact is connected to at least one counter-pressure element outside the vacuum chamber, said counter-pressure element being a movable component of a compensating reservoir that is pressure-tight sealed and that has an inner pressure, wherein the vacuum chamber and the counter-pressure element are arranged in a gas-insulated compartment, and
- wherein the inner pressure in the compensating reservoir at least partly compensates a closing pressure acting on the movable contact.
1 more element
A circuit breaker comprising:
- at least one vacuum chamber that has a longitudinal axis, a fixed and a movable contact, said movable contact being acted on by an environmental pressure of the vacuum chamber, and
- a drive mechanism for moving the movable contact between an open position and a closed position,
- wherein the movable contact is connected to at least one counter-pressure element outside the vacuum chamber, said counter-pressure element being a movable component of a compensating reservoir that is pressure-tight sealed and that has an inner pressure, and
- wherein the inner pressure in the compensating reservoir substantially corresponds to a pressure in the vacuum chamber.
1 more element
Dependencies are inferred from the claim text.