Auxiliary unit for an electric circuit breaker, electric system comprising a circuit breaker and one such auxiliary unit and method for determining a cause of opening of the circuit breaker by means of one such auxiliary unit
US9817072B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2014 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Oct 2, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2071/042
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An auxiliary apparatus is coupled to an electric circuit breaker. In the open position, the breaker interrupts the circulation of a current in an electrical connection, which includes at least one electrical conductor and a mechanical output member movable between an operating position and a stop position associated with the interruption of the circulation of the current in the connection after opening of the breaker. The auxiliary apparatus includes at least one current sensor to measure the current circulating in a respective conductor, and a mechanical coupler to couple with the mechanical output member. The mechanical coupler also detects the opening of the breaker. The auxiliary apparatus also includes a device for determining a cause of the detected opening, based on the intensity measured by the current sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.