Patent · US Active

Device and method for protecting a consumer

US9325165B2 · kind B2 · utility

1Cited by

5References

21Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Klaus Behringer · Basel, CH
Martin Maier · Asperg, DE
Klaus Pfitzner · Amberg, DE
Bernhard Rösch · Sulzbach-Rosenberg, DE

Key dates

Filing date	Sep 16, 2011
Grant date	Apr 26, 2016
Priority date	—
Expiry date	Sep 16, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH02H7/0852
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A device is disclosed for protecting a consumer, with a first current path having two lines, and a monitoring arrangement for detecting an imminent overload of the electrical consumer. In order to enable the detection of an imminent overload of a consumer, it is proposed that the monitoring arrangement includes a first temperature measuring unit, an evaluation unit and a first measuring element, which establishes an electrically conductive connection between the two lines of the first current path. The first temperature measuring unit is electrically isolated from the first measuring element and includes a first and a second temperature sensor. The first and second temperature sensor of the first temperature measuring unit are configured to simultaneously record a temperature of the first measuring element and the evaluation unit is configured to detect an imminent overload of the consumer based upon the recorded temperatures of the first temperature measuring unit.

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