Faulted arc type electrical fire monitoring detector and faulted arc recognition and alarm method

Abstract

The invention discloses a faulted arc type electrical fire monitoring detector. The faulted arc type electrical fire monitoring detector mainly comprises a power supply transformation unit, an output current signal sample amplification unit, an arc spectrum characteristic extraction unit, a spectrum pulse shaping unit, a voltage basis reference, an input voltage signal sample amplification unit, a DSP (digital signal processor) processing unit, a CAN (controller area network) communication interface unit, an output control and indication unit and the like. The detector can effectively monitor faulted arcs generated by bad contact in distribution loops, can also monitor faulted arcs generated during overcurrent or short circuit, and has functions of communicating with monitor equipment in real time and reporting alarm information initiatively.

Description

technical field [0001] The invention belongs to the technical field of electrical fire monitoring, in particular to a fault arc type electrical fire monitoring and detection device and a fault arc identification and alarm method. [0002] Background technique [0003] According to the statistical results of fire investigations in recent years, more than 30% of fire accidents in our country are directly caused by electrical fires. Effective prevention and reduction of electrical fires have extremely important practical significance for improving the safety of people's lives and properties. The focus of electrical fire prevention is to improve the overall level of electricity consumption and distribution systems and enhance the safety awareness of the whole people. Improving electrical fire detection technology and early warning technology is the most effective way to prevent and reduce electrical fires. [0004] At present, my country's electrical fire detection technology i...

AI Technical Summary

Problems solved by technology

[0005] At present, the existing arc fault detection methods include the three-cycle method and the signal processing method in the frequency domain, etc., but these methods are all based on the operation of the microprocessor. The performance requirements of the microprocessor are very high, resulting in a high overall cost

In particular, the current existing arc fault detection devices do not integrate the three functions of arc fault detection, real-time communication and active reporting of alarm information, and cannot give early warning information in the early stage of a fire, nor do they have electrical fire protection capabilities. The unique function of quickly locating the fault point and automatically identifying the fault category unique to monitoring

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