The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 2020
Filed:
May. 31, 2017
Siemens Ag, Munich, DE;
SIEMENS AKTIENGESELLSCHAFT, Munich, DE;
Abstract
An arc fault detection unit for an electrical low-voltage circuit, includes at least one voltage sensor assigned to the circuit, for periodically determining electrical voltage values of the circuit, and at least one current sensor assigned to the circuit, for periodically determining electrical current magnitudes of the circuit, both of which are connected to an evaluation unit. The sensors being embodied such that value pairs, having a voltage value and a current magnitude are determined continuously, a value set including a plurality of value pairs. Further, an arc voltage, compared to a first threshold value, is calculated from three value sets and in response to the first threshold value being exceeded, an arc fault detection signal is output.