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Portable direct-current large-current debugging device

A high-current, portable technology, applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problem that the output current cannot reach the output current value, achieve the effect of strengthening standardization, ensuring safe and reliable operation, and improving work efficiency

Active Publication Date: 2013-02-27
EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a long current test line is required in the field, due to the limitation of the opening voltage, the output current often cannot reach the rated output current value

Method used

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  • Portable direct-current large-current debugging device

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0022] Such as figure 1 The portable DC high-current debugging device shown,

[0023] Portable DC large current debugging device, including a constant current source module 1 for generating a set current value, a microprocessor 7 for sampling and calculation control, and a liquid crystal screen 5 for outputting data, a keyboard 6 and a printer 4, The liquid crystal screen 5, the keyboard 6 and the printer 4 are respectively connected to the output end of the microprocessor 7, and the output end of the microprocessor 7 is connected with a control adjustment module 3 for electrical isolation, and the output end of the control adjustment module 3 is connected to the constant current source module 1 is connected to the input end, the output end of the constant current source module 1 is connected to the current sensor 2, and the output end of the c...

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Abstract

The invention relates to a portable direct-current large-current debugging device, which comprises a constant-current source module for producing a set current value, a microprocessor for sampling and calculation control, and a liquid crystal screen, a keyboard and a printer, which are respectively used for outputting data, wherein the liquid crystal screen, the keyboard and the printer are respectively connected with the output end of the microprocessor, the output end of the microprocessor is connected with a control adjusting module for electrical isolation, the output end of the control adjusting module is connected with the input end of the constant-current source module, the output end of the constant-current source module is connected with a current sensor, and the output end of the current sensor is connected with the microprocessor. Due to the adoption of the portable direct-current large-current debugging device, the direct-current current sensor rated-current test requirement of an ultrahigh-voltage direct-current station can be met, a rated output current value can be outputted, the needed precision requirement can be met, and the working efficiency of the in-situ test can be improved.

Description

technical field [0001] The present invention relates to a device for on-site verification of ultra-high voltage DC current transformers; in particular, it relates to a portable DC high current device suitable for testing the accuracy and linearity of DC CTs with primary rated currents of 3000A-3250A for DC UHV Debugging device. Background technique [0002] State Grid's "Eleventh Five-Year Plan" planning and construction, my country's high-voltage direct current transmission projects have started construction one after another. The construction of the high-voltage direct current transmission project is to further implement the national energy strategy, realize the overall planning goal of the State Grid's west-to-east power transmission, and promote the optimal allocation of resources. [0003] With the rapid development of high-voltage direct current transmission project construction, its corresponding electrical experiment maintenance technology and equipment should also ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/02G01R1/28
Inventor 王竣吕家圣夏谷林陆春玉邓军陈禾郭波杨方明楚金伟宋作森霍立海刘金亮潘涛王亮窦佳
Owner EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID
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