Arc fault identification ability test analysis device and test analysis method

Abstract

The invention relates to an arc fault recognition capability experimental analysis device and an experimental analysis method thereof. The arc fault recognition capability experimental analysis device comprises an upper computer test control and analysis module, a lower computer and a communication module, wherein the communication module is used for realizing communication between the upper computer test control and analysis module and the lower computer, the lower computer comprises an AFCI (arc fault circuit interrupter) action feature test module used for testing tested AFCI action features and an electronic test module, the arc fault recognition capability experimental analysis device also comprises a collecting module, the collecting module is used for receiving arc fault signals sent by the AFCI action feature test module, realizing conditioning, collection, conversion and measurement on the arc fault signals, and sending the arc fault signals to the upper computer test control and analysis module to be processed, and the upper computer test control and analysis module realizes data exchange with the AFCI action feature test module through the communication module. The arc fault recognition capability experimental analysis device and the experimental analysis method have the advantages that the automatic monitoring and warning function and the test data analysis function are realized, and the arc fault recognition capability analysis speed of an AFCI is greatly accelerated.

Description

technical field [0001] The invention relates to an arc fault identification capability test analysis device and a test analysis method thereof. Background technique [0002] In recent years, the number of occurrences of electrical fires and direct losses have always occupied the first place among various fire causes, and most of electrical fires are caused by arc faults such as short circuit, leakage, and poor contact. In the low-voltage power supply and distribution system, the causes of arc faults are mainly divided into two categories, one is along the partially conductive surface of the insulator, and the other is generated between two electrodes that are very close. The former is due to the long-term heating of the insulator or the occurrence of occasional electric sparks, which causes the carbonization of the insulating surface and forms an arc channel; the latter is caused by the live conductor touching the grounding pipe, or the insulation of the cable is scratched b...

AI Technical Summary

Problems solved by technology

Although my country has formulated the carbonization path test standards and test methods for arc fault circuit breakers, due to the complexity of the carbonization path test process, the safety factor of the test system including high-voltage loops is poor, and the carbonization path formed by high-voltage carbonization is unstable. The required wave forming power is low and acquisition is difficult. When the test cable is burned, a large amount of toxic substances such as dioxin, hydrogen chloride, and benzene ring will be produced, polluting the environment

Due to the above reasons, it is difficult to test the fault arc carbonization path, and it is urgent to develop a fault arc carbonization path test and analysis device with intelligent control, energy saving and environmental protection, convenient operation and safe use.

[0004] In the false tripping test, there are as many as 18 test items. Every time a test is completed, the test load must be replaced and re-wired, so the test is time-consuming and laborious.

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