Power switch
AssigneeSiemens Aktiengesellschaft
InventorMichael STEHLE
Life of this patent
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Abstract
A circuit breaker is for interrupting an electric current circuit when current and/or current time period thresholds are exceeded. The circuit breaker includes at least one control unit, to which energy is supplied by an energy converter. A primary winding of the energy converter is formed by a conductor of the electric current circuit. The core of the energy conductor surrounding the electric current circuit conductor is used as the primary winding. A secondary winding surrounds a section of the core. The secondary winding additionally surrounds an inductor core, arranged relative to the core using an insulating spacer element. The secondary winding and the inductor core are at least party magnetically shielded from the primary winding by a shielding plate guided through the core.
Claims23
A circuit breaker for interrupting an electric power circuit when at least one of current and current time period thresholds are exceeded, the circuit breaker comprising:
- at least one control unit, energy being supplied to the at least one control unit via an energy converter;
- a primary winding of the energy converter being constituted by a conductor of the electric power circuit,
- a core of the energy converter enclosing the conductor of the electric power circuit, to functions as a primary winding, and
- a secondary winding of the energy converter enclosing a section of the core, and
- additionally enclosing an inductor core,
- arranged relative to the core via an insulating spacer element,
- wherein the secondary winding and the inductor core are at least partially magnetically shielded from the primary winding by a shielding plate, routed through the core.
Dependencies are inferred from the claim text.