Low-voltage circuit breaker and method
US11152778B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 2019 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Nov 17, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H1/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
At least one example embodiment provides a low-voltage circuit breaker for interrupting a low-voltage circuit. The low-voltage circuit breaker includes at least one first current sensor configured to determine a magnitude of an electrical current of the low-voltage circuit, an interruption unit with contacts configured to interrupt the low-voltage circuit, an electronic trip unit connected to the first current sensor and the interruption unit and configured in such a way that an interruption of the low-voltage circuit is instigated upon current or/and current period limit values being exceeded, and a power supply unit configured to supply power to the electronic trip unit and to at least one additional component of the low-voltage circuit breaker, wherein a second current sensor is between the power supply unit and the at least one additional component, said second current sensor configured to determine the magnitude of the current of the additional component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.