Voltage transient fluctuation instrument

Abstract

Disclosed is a voltage transient fluctuation instrument. The circuit of the voltage transient fluctuation instrument includes an isolation transformer. The isolation transformer input standard input 220VAC, 50HZ voltage changing into a three-way mutual isolation voltage output, wherein the first output voltage is 220VAC, the second output voltage of 198VAC and the third output voltage is 242VAC, a first solid-state relay is serially connected to the circuit of the first 220VAC voltage, a second solid-state relay is serially connected to the circuit of the second 198VAC voltage, a third solid-state relay is serially connected to the circuit of the third 242VAC voltage, control terminals of the three solid-state relays are connected to a single-chip microcomputer, the three-way alternating-current (AC) output voltage is precisely timed through the single-chip microcomputer, the AC voltage is switched for output by using the single-chip microcomputer to control the solid-state relays according to the testing requirements of the AC voltage. By the voltage transient fluctuation instrument, normal operation can be continued during mains supply fluctuation, accurate timing is achieved, and mains supply fluctuation can be simulated.

Description

technical field [0001] The invention relates to the technical field of voltage detection, in particular to a voltage transient fluctuation instrument. Background technique [0002] At present, simulating mains voltage fluctuations on the market can be realized by using voltage conversion and adjustment equipment such as contact voltage regulators and electronic voltage regulators. Strict control of time can be carried out through timers, but repeated voltage mutations are combined with time However, the control cannot be satisfied, and it is impossible to accurately time and simulate the voltage fluctuation of the mains. Contents of the invention [0003] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a voltage transient fluctuation meter, which can continue to work normally when the mains fluctuates, and can accurately time and simulate the voltage fluctuation of the mains. [0004] In order to a...

AI Technical Summary

Problems solved by technology

[0002] At present, simulating mains voltage fluctuations on the market can be realized by using voltage conversion and adjustment equipment such as contact voltage regulators and electronic voltage regulators. Strict control of time can be carried out through timers, but repeated voltage mutations are combined with time However, the control cannot be satisfied, and it is not possible to accurately time and simulate the voltage fluctuation of the mains.

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