Patent · US Expired

Electric power switch with an electronic memory unit for parameters and conversion factors

US7133270B2 · kind B2 · utility

2Cited by

10References

4Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Thomas Driehorn · Berlin, DE
Andreas Krauss · Lörrach, DE
Aron-Ernst Musiol · Teltow, DE
Andreas Pancke · Berlin, DE
Ilka Redmann · Falkensee, DE
Wolfgang Rohl · Berlin, DE

Key dates

Filing date	Apr 10, 2003
Grant date	Nov 7, 2006
Priority date	—
Expiry date	Apr 10, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH02H3/006
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electrical power breaker includes an electronic protective device and an electronic memory. The memory is accommodated in the power breaker such that it is physically separated from said protective device, for operational data for the power breaker. Data security when using the additional electronic memory is increased by the electronic memory being connected to the protective device via a data bus, which can be used to transmit control signals for the purpose of activating or deactivating a write protection device of the electronic memory. The data bus is preferably an I2C bus, and the write protection device is controlled by an I/O module which is likewise controlled by the I2C bus.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.