Constant current power supply for lightning protection discharging channel test device of artificial earthing electrode

A technology of artificial grounding and testing equipment, which is applied in the direction of adjusting electrical variables, control/regulation systems, instruments, etc., to achieve a wide output voltage range, good energy saving effects, and extended service life

Inactive Publication Date: 2015-09-16
HULUDAO POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER +2
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  • Constant current power supply for lightning protection discharging channel test device of artificial earthing electrode

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Embodiment Construction

[0009] As shown in the figure, the power input module 1 is connected to the voltage regulation module 2 and supplied to the constant current output module 3 , and the current introduced from the constant current output module is connected to the voltage regulation module through the differential pressure detection module 4 .

[0010] Specific process:

[0011] The power input module is connected to a 12V lithium battery or an external 9-18V DC power supply, and the module has overvoltage and overcurrent protection functions;

[0012] The overvoltage protection voltage value is 24V, and the overcurrent protection current value is 3A. The voltage regulation module performs level conversion on the input voltage, and the converted output voltage ranges from 1 to 80V;

[0013] The constant current output module is used to generate a constant current, and the generated current is directly output to the load. The differential pressure detection module automatically detects the voltag...

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Abstract

The invention discloses a constant current power supply for a lightning protection discharging channel test device of an artificial earthing electrode. A power input module is connected with a voltage regulation module, and is used for supplying a constant current output module, and current introduced from the constant current output module is connected to the voltage regulation module through a dropout voltage detection module. Compared with the prior art, the constant current power supply has the advantages that a wider output voltage range can be provided, the power of the power supply can be automatically regulated according to a load condition to effectively prolong the service life of the power supply and achieve a better energy-saving effect, and the constant current power supply is suitable for the lightning protection discharging channel test device of the artificial earthing electrode.

Description

technical field [0001] The invention proposes a power supply in the field of electric power, specifically a constant current power supply for an artificial grounding body lightning protection leakage channel test device. Background technique [0002] The artificial grounding body lightning protection leakage channel test device is suitable for positioning measurement of grounding rays in the power industry. During the measurement operation, the stability of signal transmission is very important. In order to ensure the reliability of the signal, the constant current drive method is usually used, but the traditional The power utilization rate of the constant current circuit is poor, the output voltage range is small, and the stable output of the current cannot be guaranteed for high impedance loads. Contents of the invention [0003] In order to overcome the disadvantages of the prior art, the present invention proposes a constant-current power supply for a testing device fo...

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Application Information

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IPC IPC(8): G05F1/46
Inventor 才源张立学郭子华赵广忠王焕付帅常开飞张少权刘富文钟善斌熊刘章刘居辉高彬侯晓维
Owner HULUDAO POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER
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