Arc protection device testing instrument and testing system based on wireless technology

Abstract

The invention discloses an arc protection device testing instrument and a testing system based on the wireless technology. The testing system includes an upper computer, the arc protection device testing instrument, an arc sensor and a to-be-tested arc protection device; the upper computer sends a testing command to the arc protection device testing instrument and receives a test result signal fed back by the arc protection device testing instrument; the arc protection device testing instrument includes a control module, a switch power supply module, an AC voltage output module, an AC current output module, a wireless transmission module and an arc source module; the control module controls the outputting of voltage and current from the AC voltage output module and the AC current output module to the arc protection device respectively and sends a control command to the arc source module through the wireless transmission module; the arc source module includes a microcontroller and a light source switching circuit; the microcontroller receives the control command and controls the light source switching circuit to generate and output an arc source signal so as to trigger the arc protection device to be actuated; the control module obtains an actuation time signal and then feeds the test result back to the upper computer. The wireless technology is adopted to achieve the arc fault simulation and test in a switch cabinet, and meanwhile, the testing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of arc protection device testing, in particular to an arc protection device tester and a test system based on wireless technology. Background technique [0002] In recent years, arc protection products have been widely used in power companies at all levels, thermal power plants, new energy power generation, metallurgy, petrochemical and other industries, especially domestic arc protection products have developed rapidly in technology, and ultraviolet light sensor technology is far away Compared with imported products, the market share of domestic products is also increasing year by year, and the role of arc protection products is also becoming more and more obvious. Product quality has been continuously improved, and the on-site operation rate has been greatly improved. [0003] However, there is still no unified method and special equipment for the testing and calibration of many arc protection products. A...

AI Technical Summary

Problems solved by technology

[0004] 1) The uncertainty and randomness of the output value of the light source;

[0005] 2) The spectral range of the light source is arbitrary, and the arc spectrum cannot be simulated;

[0006] 3) Manually adding an ordinary light source to the arc sensor, the action time of pure arc logic cannot be measured;

[0007] 4) It is difficult to control the synchronization of the trigger time and current output when the light source is added manually, resulting in a large difference in the tested action time, and the human influence factor is large;

[0008] 5) The reading of the action time is completely manual, the test results cannot be automatically stored, and the test results cannot be recorded and queried

At present, although there are several companies in China that are developing this product, the product is still in the trial production stage, and its functions and performance still need to be optimized and upgraded.

And when it is necessary to simulate the arc fault in the switchgear, the simulation and detection calibration cannot be realized, and it is difficult to ensure that the arc protection device can achieve the same protective effect as the test and calibration outside the switchgear after it is put into use

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