Power switch
AssigneeSiemens Aktiengesellschaft
InventorsGerald PLANK, Michael STEHLE
Life of this patent
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Abstract
A power switch is for interrupting an electrical circuit when current and/or current time span threshold values are exceeded. The power switch includes an energy converter, which on the primary side is connected to the electrical circuit, and on the secondary side provides an energy supply for at least one control unit of the power switch. The energy converter has a core having a remanence flux density (Br2) of less than 30% of the saturation flux density (Bs2) or a coercive field strength (Hc2) of less than 10 A/m.
Claims12
A circuit breaker for interrupting an electrical circuit upon at least one of current and current period limit values being exceeded, having comprising:
- an energy converter, connected on a primary side to the electrical circuit and, connected on a secondary side, to provide an energy supply for at least one control unit of the circuit breaker, the energy converter including
- a core, a remanence flux density of the core being less than 30% of a saturation flux density of the core, wherein the core includes a ferromagnetic nanocrystalline material.
-11. (canceled).
Dependencies are inferred from the claim text.