Electronic power-frequency voltage-withstand test voltage-regulating device, test wiring circuit and test voltage-regulating method
A technology of power frequency withstand voltage and voltage regulating device, which is applied in the direction of measuring device, measuring device shell, measuring circuit, etc. It can solve the problems of heavy test equipment, affecting test efficiency, and many field wiring, etc., and achieves light weight and high integration. , the effect of high degree of automation
Active Publication Date: 2015-09-30
STATE GRID CORP OF CHINA +1
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Problems solved by technology
The whole set of equipment is heavy (greater than 20 kg), and there are many on-site wiring, which affects the test efficiency
The test devices currently on the market have the disadvantages of heavy test equipment, low integration, and low automation.
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[0026] As shown in the figure, the present invention is a voltage regulating device for a power frequency withstand voltage test, which integrates high and low voltage voltage and current measurement, a voltage regulator, and an overvoltage and overcurrent protection device. The internal connection of the present invention such as figure 1 and 2 As shown, in the automatic mode, the operator turns on the power through the operation panel 3 and sets the withstand voltage test voltage of the tested product (withstand voltage time, test transformer ratio, voltage divider ratio and other parameters are automatically saved once set. ), the test device is started, and the microcomputer control module 2 automatically controls the output voltage of the sinusoidal AC voltage regulating module 1 to start boosting according to the instruction, and the output sinusoidal alternating current is output to the low-voltage side of the test transformer through the low-voltage line 11 of the ...
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The invention discloses an electronic power-frequency voltage-withstand test voltage-regulating device, a test wiring circuit and a test voltage-regulating method, belongs to the technical field of electrical tests, and in particularly relates to an electronic power-frequency voltage-withstand test voltage-regulating device. The invention provides an electronic power-frequency voltage-withstand test voltage-regulating device which is stable in structure and reduced in output waveform distortion. The electronic power-frequency voltage-withstand test voltage-regulating device disclosed by the invention comprises a sine wave voltage-regulating module (capable of using the FZXB2000 of Shanghai Fushen Electronic Technology CO., LTD), a microcomputer control module, an operation panel, a switch power supply, a high-voltage current analogue-digital converter, a high-voltage voltage analogue-digital converter, a low-voltage current analogue-digital converter, a low-voltage voltage analogue-digital converter, a high-voltage current connecting wire, a high-voltage measuring wire and a test transformer low-voltage wire, wherein the structural essential is that the port of the microcomputer control module is connected with the port of the sine wave voltage-regulating module, the port of the operation panel, the port of the switch power supply, the port of the high-voltage current analogue-digital converter, the port of the high-voltage voltage analogue-digital converter, the port of the low-voltage current analogue-digital converter and the port of the low-voltage voltage analogue-digital converter respectively.
Description
technical field [0001] The invention belongs to the technical field of electrical testing, in particular to a voltage regulating device for electronic power frequency withstand voltage testing. Background technique [0002] According to the power industry standard, the voltage regulating device required for the power frequency withstand voltage test requires at least two voltmeters, two ammeters, and one voltage regulator. The whole set of equipment is heavy (greater than 20 kg), and there are many on-site wiring, which affects the test efficiency. The test devices currently on the market have the disadvantages of heavy test equipment, low integration, and low automation. Contents of the invention [0003] The present invention aims at the above problems and provides an electronic power frequency withstand voltage test voltage regulating device with stable structure and small output waveform distortion. [0004] In order to achieve the above object, the present in...
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IPC IPC(8): G01R1/28G01R1/04
Inventor 汪宇刘勇高连生孙哲杨斌孙长龄
Owner STATE GRID CORP OF CHINA