Invention Grant
US09136688B2 Method and system for detecting an arc fault in a power circuit
有权
用于检测电源电路中的电弧故障的方法和系统
- Patent Title: Method and system for detecting an arc fault in a power circuit
- Patent Title (中): 用于检测电源电路中的电弧故障的方法和系统
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Application No.: US13974194Application Date: 2013-08-23
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Publication No.: US09136688B2Publication Date: 2015-09-15
- Inventor: Joachim Laschinski , Marcel Kratochvil , Markus Hopf , Andreas Falk
- Applicant: SMA Solar Technology AG
- Applicant Address: DE Niestetal
- Assignee: SMA Solar Technology AG
- Current Assignee: SMA Solar Technology AG
- Current Assignee Address: DE Niestetal
- Agency: Eschweiler & Associates, LLC
- Main IPC: H02H3/00
- IPC: H02H3/00 ; H02H1/00 ; H02J3/38 ; H02H3/16 ; H01L31/02
Abstract:
The method of detecting an arc fault in a power circuit includes determining a first signal related to current flowing in the power circuit is determined and analyzing the first signal to determine whether the signal indicates the presence of an electric arc in the power circuit. In case the first signal indicates the presence of an electric arc in the power circuit, means for suppressing an electric arc are activated. A second signal related to current flowing in the power circuit is then determined and analyzed. An occurrence of an arc fault in the power circuit is signaled if the second signal does not indicate the presence of an electric arc. The system for detecting an arc fault is designed to perform a corresponding method.
Public/Granted literature
- US20130335861A1 Method and System for Detecting an Arc Fault in a Power Circuit Public/Granted day:2013-12-19
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