Method and apparatus for accessing and activating accessory functions of electronic circuit breakers
US7301742B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2003 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | Jul 6, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H71/7409
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electronic trip unit for a circuit breaker includes a programmed microprocessor and a module plug in removable signal communication with the microprocessor. The module plug includes a program identifier. The microprocessor recognizes the program identifier and accesses a program of a plurality of programs external to the module plug based on the program identifier. The microprocessor responds to the program to perform a function identified by the module plug. The function identifiable by the module plug includes a communications function, a load monitoring function, a non-tripping ground fault alarm function, a flag function, or any combination thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.