Testing device based on low-voltage high-power mining frequency converter

Abstract

The invention relates to a testing device based on a low-voltage high-power mining frequency converter. The device comprises a power supply, a transformer, a filter, a tested frequency converter, a tested motor, an interface board, an upper computer and a switch. The power supply is connected with the transformer; the transformer is connected with the filter, wherein the filter is connected with the tested frequency converter, the tested frequency converter is connected with the tested motor, the state output end of the tested frequency converter is connected with the interface board, the interface board is connected with the upper computer, the interface board is connected with the accompanying test frequency converter, the accompanying test frequency converter is connected with the accompanying test motor, and the input end of the accompanying test frequency converter is connected with the accompanying test power supply. According to the testing device based on the low-voltage high-power mining frequency converter, the testing result can be more accurate through data comparison of the tested group and the test accompanying group, the safety monitoring system is additionally arranged, various factors influencing the testing result in the device can be monitored, the testing process is prevented from being influenced, and the safety is higher.

Description

technical field [0001] The invention belongs to the technical field of frequency converter testing, and in particular relates to a safe and high-precision testing device based on a low-voltage high-power mining frequency converter. Background technique [0002] As a power control device for voltage regulation and frequency regulation, frequency converter has been widely used in various industrial automation fields. Special frequency converters need to be inspected before leaving the factory to ensure their quality is qualified, so a series of tests are required for the functions of the frequency converter. [0003] The inventors have found that there are at least the following problems in the prior art: the existing functional testing of frequency converters generally passes manual quality inspection, and the operation of the testing platform is complicated. The function of the frequency converter is complex, and there are many test items. Manual inspection not only makes t...

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Problems solved by technology

[0003] The inventor found that there are at least the following problems in the prior art: the existing functional testing of frequency converters generally passes manual quality inspection, and the test platform is complicated to operate

The function of the frequency converter is complex, and there are many test items. Manual inspection not only makes the workload heavy and labor-intensive, but also prone to missed inspections. In addition, because the data after manual testing needs to be filled in manually, the management is extremely inconvenient.

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