Fault arc detection method, device and system

A kind of technology of fault arc and detection method, which is applied in the direction of measuring device, circuit device, emergency protection circuit device, etc., can solve the problems of low accuracy and poor reliability, etc.

Active Publication Date: 2019-11-15
GREE ELECTRIC APPLIANCES INC
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] Embodiments of the present invention provide a method, device and system for detecting an arc fault, so as to at least solve the technical problems of low accuracy and poor reliability of the detection method for an arc fault in the prior art

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  • Fault arc detection method, device and system
  • Fault arc detection method, device and system
  • Fault arc detection method, device and system

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Embodiment Construction

[0025] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0026] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a fault arc detection method, device and system. The method comprises that an arc parameter, namely a parameter of an arc generated in a circuit, of the circuit where electricequipment is positioned is obtained, a first model is used to analyze the arc parameter to determine the possibility that the arc belongs to normal arc and fault arcs; a second model is used to determine the possibility of the normal arc and fault arc, and whether the arc belongs to the fault arc is determined. Thus, the technical problems of low accuracy and reliability of the present fault arc detection method are overcome.

Description

technical field [0001] The invention relates to the field of arc fault protection, in particular to a method, device and system for detecting an arc fault. Background technique [0002] Electrical equipment will generate arcs in the circuit during actual operation. Some of these arcs are "good arcs" generated by the normal operation of the equipment (waveforms of parameters such as voltage and current caused by the moment of motor startup, switching actions, etc.), and some are "bad arcs" caused by faults (damage of the insulation layer of the connecting wires) , fluctuations in voltage, current and other parameters caused by poor electrical contact, etc.), "bad arc" is also a fault arc, which is the main cause of electrical fires. AFCI (the abbreviation of Arc-Fault Circuit-Interrupter) technology is the arc fault segmental protection technology, which is used to distinguish the normal arc from the fault arc by identifying the state characteristics of the fault arc in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12G06N3/08
CPCG01R31/12G06N3/08G01R31/00H02H3/00
Inventor 宋德超陈翀杨赛赛
Owner GREE ELECTRIC APPLIANCES INC
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