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A fault arc signal simulation generating device

A fault arc and generating device technology, which is applied to measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problem that the fault arc signal cannot be simulated at any time according to needs.

Active Publication Date: 2016-05-25
WENZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

This device solves the simulation of fault arc to a certain extent, but there are still defects, that is, the device cannot simulate different types of fault arc signals at any time according to needs, so it still cannot meet the needs of scientific research

Method used

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  • A fault arc signal simulation generating device
  • A fault arc signal simulation generating device
  • A fault arc signal simulation generating device

Examples

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Embodiment Construction

[0021] like figure 1 As shown, the fault arc signal simulation generating device includes the following components: a fault arc signal acquisition device, a fault arc signal digitization device, a central processing and control unit and a program-controlled power amplification unit. Wherein the fault arc signal acquisition device is composed of a current acquisition circuit and a voltage acquisition circuit, the current acquisition circuit includes a current transformer, a low-pass filter and an amplification circuit; The voltage transformer for the voltage signal and the mains synchronous signal; the fault arc signal digitization device is used to digitize the fault arc signal collected from the fault arc signal acquisition device, and output the digitally processed fault arc signal to Central processing and control unit; central processing and control unit, including command input and display device for man-machine exchange, fault arc sample memory, shielded load sample memo...

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Abstract

The invention relates to a fault arc signal simulation generating device. The device includes a fault arc signal acquisition device, a fault arc signal digitization device, a central processing and control unit and a program-controlled power amplification unit. The central processing and control unit includes a fault arc sample memory and a shielded load sample memory, a digital synthesis unit and a digital-to-analog converter. . This device uses the arc fault signal acquisition device to digitize the various arc fault signals collected by the arc fault signal digitization device and store them in the arc fault sample memory and the shielded load sample memory. When a certain type of arc fault signal is required to be output, from The required arc fault signal waveform can be obtained by taking corresponding samples from the arc fault sample memory and shielded load sample memory and synthesizing them, thereby omitting a large number of experimental devices that need to generate arc faults.

Description

technical field [0001] The invention relates to an electrical signal measurement and simulation device, in particular to a fault arc signal simulation generation device. Background technique [0002] Arcing is a phenomenon of gas ion discharge, which is also a kind of plasma. From a microscopic point of view, the current in the arc is the result of the movement of electrons and positive ions under the action of an electric field, and the movement of electrons constitutes the main part of the current. The arc is characterized by high temperature, small current and short duration, and it will appear frequently once a breakdown point occurs. During arc discharge, a large amount of heat will be generated, which can ignite the surrounding flammable and explosive materials, causing fire or even explosion. The arc on the line can be divided into two types, one is the normal operation arc, called "good arc"; the other is the fault arc, called "bad arc". "Good arc" refers to the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
Inventor 吴自然吴桂初游颖敏倪侃刘星景
Owner WENZHOU UNIV
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