Automatic test method for testing output voltage precision of fire-fighting power supply

Abstract

The invention relates to an automatic test method for testing the output voltage precision of a fire-fighting power supply. The method comprises the following steps: an industrial computer controls a programmable direct-current electronic load to initialize; after the industrial computer controls the programmable alternating-current variable-frequency power supply to input alternating current to the fire-fighting power supply, the industrial computer acquires an output voltage value of the fire-fighting power supply, namely a no-load voltage value; the industrial computer controls the programmable direct-current electronic load to discharge according to a preset half-load current value and the fire-fighting power supply to be in a half-load state, and then the industrial computer collects an output voltage value of the fire-fighting power supply, namely a half-load voltage value, and calculates the half-load output voltage precision; the industrial computer controls the programmable direct-current electronic load to discharge according to a preset full-load current value, the fire-fighting power supply is fully loaded, then the industrial computer collects an output voltage value of the fire-fighting power supply, namely a full-load voltage value, and the precision of the full-load output voltage is calculated; and the industrial computer is used for collecting and outputting data in the testing process, the error rate is low, and efficiency is high.

Description

[0001] This application is a divisional application of the original application whose patent application number is 201910695361.5, the application date is July 30, 2019, and the invention-creation name is a fire-fighting power supply automatic test system and method. technical field [0002] The invention relates to the technical field of fire-fighting power supplies, and more particularly, to an automatic test method for testing the output voltage accuracy of fire-fighting power supplies. Background technique [0003] Fire-fighting power supply is a conversion device that can convert alternating current into direct current. It usually includes a transformer rectifier module, a power management module, a battery module, a battery management module, a working status indication module, and an automatic control switch for power supply switching. When normal, the mains supply power to the DC load through the fire protection power supply. When the mains input is abnormal, the fire...

AI Technical Summary

Problems solved by technology

[0004] In order to understand the performance of the fire-fighting power supply, it is necessary to test the fire-fighting power supply. However, at present, most of them manually adjust the test equipment and record the test data, which not only requires high personnel but also has a high error rate and low test efficiency.

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