Circuit breaker and method for operating a circuit breaker
AssigneeEaton Intelligent Power Limited
InventorGeorg REIDT
Life of this patent
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Abstract
A circuit breaker and method for operating a circuit breaker. The circuit breaker includes a first and a second breaker terminal, a bimetal stripe, a first conduction line, a switch with a first and a second contact, a triggering device mechanically coupling the bimetal stripe to the switch, a magnet and a detection device comprising a magnetic field sensor configured to detect a magnetic field of the magnet. The first conduction line is electrically coupled to the first breaker terminal and to the first contact and is wound around the bimetal stripe. The magnet is connected to at least one of the bimetal stripe, the triggering device and the switch.
Claims14
A circuit breaker, comprising
- a first and a second breaker terminal,
- a bimetal stripe,
- a first conduction line,
- a switch with a first and a second contact, wherein the first conduction line is electrically coupled to the first breaker terminal and to the first contact of the switch and is wound around the bimetal stripe,
- a triggering device mechanically coupling the bimetal stripe to the switch,
- a magnet connected to at least one of the bimetal stripe, the triggering device and the switch, and
- a detection device comprising a magnetic field sensor configured to detect a magnetic field of the magnet.
A method for operating a circuit breaker, comprising
- flowing a current from a first breaker terminal to a second breaker terminal via a first conduction line and a switch,
- heating a bimetal stripe by the first conduction line that is wound around the bimetal stripe, wherein the bimetal stripe is mechanically coupled to the switch via a triggering device,
- moving a magnet as a function of the heat provided to the bimetal stripe, wherein the magnet is connected to at least one of the bimetal stripe, the triggering device and the switch, and
- detecting a magnetic field of the magnet by a detection device comprising a magnetic field sensor.
Dependencies are inferred from the claim text.