Interrupter unit for a circuit breaker
AssigneeSiemens Energy Global GmbH & Co. KG
InventorsClaudia Wiesinger, Frank Reichert
Life of this patent
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Abstract
An interrupter unit for a circuit breaker includes a gas-insulated housing, which is fillable with a quenching gas, and a gas-guiding structure, which is disposed in the housing and has a guide tube and at least one diverting element. The guide tube extends in tubular manner about a longitudinal axis of the interrupter unit in order to guide hot gas, which is created in an electric arc region of the interrupter unit by the heating of quenching gas by an electric arc, away from the electric arc region. The at least one diverting element is configured to set hot gas exiting from the guide tube in a circular flow running around the longitudinal axis.
Claims14
An interrupter unit for a circuit breaker, the interrupter unit comprising:
- a gas-insulated housing configured to be filled with a quenching gas;
- a gas-guiding structure disposed in said housing, said gas-guiding structure having a guide tube and at least one diverting element;
- said guide tube extending in a tubular manner about a longitudinal axis of the interrupter unit to guide hot gas created in an electric arc region of the interrupter unit away from the electric arc region by using an electric arc to heat quenching gas, said guide tube having an open guide tube end facing away from the electric arc region;
- said at least one diverting element configured to set the hot gas exiting from said guide tube in a circular flow running around the longitudinal axis;
- said at least one diverting element being snail-shaped and projecting through said open guide tube end into said guide tube;
- said at least one snail-shaped diverting element having a groove facing the electric arc region, said groove being formed as a conical spiral running around the longitudinal axis;
- and
- said conical spiral having a diameter decreasing in a direction toward the electric arc region.
Dependencies are inferred from the claim text.