Leakage protection switch and step voltage detection device tester

Abstract

The invention relates to a leakage protection switch and step voltage detection device tester, which comprises a shell, a circuit board is arranged in the shell, and a main controller, a power amplifier, a memory, a resistive load and an AC-DC-AC module are arranged on the circuit board; the circuit board is connected with the display module, the adjusting module and the output port on the shell,and is connected with the B-type leakage protection switch or the step voltage detection device through the output port. According to the invention, the display module can select waveform signals in the memory through the main controller, provide energy for the waveform signals through the power amplifier, convert the waveform signals into current through the resistive load and output the currentto the B-type electric leakage protection switch, thereby detecting the B-type electric leakage protection switch. Furthermore, the adjusting module can control the AC-DC-AC module to convert 220V alternating current into direct current through the main controller, then the direct current is inverted into alternating current, meanwhile, after the phase, frequency and voltage value of the alternating current are changed, the alternating current is output to the step voltage detection device through the resistive load, and then the step voltage detection device is detected.

Description

technical field [0001] The invention relates to a detection device, in particular to a leakage protection switch and a step voltage detection device tester. Background technique [0002] Leakage accidents in my country's low-voltage distribution network occur frequently. Electric fires, electrical equipment damage, and human body electric shocks have seriously affected production and life, threatening the safety of life and property. At present, AC-type leakage protection switches are mostly used in China, and the corresponding testers are mainly AC-type. Type B leakage protection switch is also called full waveform leakage protection switch, which can detect various leakage waveforms. Due to functional limitations, the AC type leakage protective switch tester cannot be used to test the B type leakage protective switch, so it is necessary to design a special tester for the B type leakage protective switch. [0003] In addition, the low-voltage leakage detection technology ...

AI Technical Summary

Problems solved by technology

However, the method for testing the performance of the system is not given, and the reliability of the system's power intake and leakage monitoring cannot be guaranteed.

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