Electric trip device provided with monitoring means, circuit breaker comprising one such trip device and method of monitoring
US7619866B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2006 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | Feb 1, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H5/105
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to an electronic trip device and a circuit breaker equipped with said electronic trip device, said trip device comprising at least one current sensor, an actuator, and an electronic processing unit to control said actuator, wherein the electronic processing unit comprises means for monitoring the state of connections of the at least one current sensor and/or of the actuator, and display means for displaying the operating state of the trip device, the means for monitoring acting on the display means to display the state of connections of the at least one current sensor and/or of the actuator. The invention also relates to a method for monitoring the state of connections of an electronic trip device comprising monitoring of the state of the connections and control of display of the state of the connections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.