Patent · US Active

Electric system

US8842403B2 · kind B2 · utility

4Cited by

3References

24Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Alwin Hummel · Winkelhaid, DE
Harald Schweigert · Wien, AT

Key dates

Filing date	Jun 5, 2009
Grant date	Sep 23, 2014
Priority date	—
Expiry date	Jan 15, 2031

Classification

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

Abstract

An electrical system having at least one load that is protected by a protective device, where a tripping parameter, i.e., a tripping current of the protective device can be set. A control unit is provided to which a measured current value of the current consumed by the at least one load is supplied, where the control unit generates a limit value, which is provided to the protective device for setting a tripping parameter as a function of the characteristic curve of the measured current value. The control unit thus permits ongoing adjustment of the tripping parameters, i.e., the release current, according to the actual operating conditions.

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