Simple program-controlled variable alternating-current experimental power supply device

Abstract

The invention relates to the technical field of alternating-current experimental power supplies, and further discloses a simple program-controlled variable alternating-current experiment power supplydevice. The device comprises an operation table, a three-phase voltage regulating transformer, a device main switch and an output switch; a rotating contact is arranged on the three-phase voltage regulating transformer; the three-phase voltage regulating transformer, the device main switch and the output switch are all installed on the operation table. A rotating contact of the three-phase voltageregulating transformer is fixedly connected with a servo motor, the servo motor is connected with a device controller through a signal line, the device controller is electrically connected with the three-phase voltage regulating transformer, a device main switch and an output switch, and the device controller is connected with a displayer through a signal line. The simple program-controlled variable alternating-current experimental power supply device is convenient in voltage regulation, and the equipment state and parameters can be visually seen.

Description

technical field [0001] The invention relates to the technical field of AC experimental power supply, in particular to a simple program-controlled variable AC experimental power supply device. Background technique [0002] The three-phase alternating current experiment is one of the electrical and electronic experiment items that science and engineering students must do in domestic colleges and universities of various levels and types. There are two types of existing experimental devices used for this experiment: one is completely separated The students assemble the experimental circuit for the instrument, and the other is to install related instruments and equipment on the electrical and electronic experimental bench, and the students only need to plug and connect the circuit according to the circuit. For example, the experimental project (page 70-72) of "measurement of voltage and current of three-phase circuit" in the experimental textbook "Electrical and Electronic Practi...

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Problems solved by technology

[0004] Aiming at the deficiencies of the existing technology, the present invention provides a simple program-controlled variable AC experimental power supply device, which has the advantages of convenient voltage regulation, and can intuitively see the status and parameters of the equipment, and solves the problem of unstable three-phase voltage in the prior art. It is troublesome to adjust the voltage and the problem that the equipment parameters cannot be obtained intuitively

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