A multifunctional secondary voltage and current comprehensive measurement and analysis device

A technology of secondary voltage and analysis device, applied in the direction of using digital measurement technology for measurement, etc., to achieve the effects of easy portability, overall weight reduction, and widespread promotion of value and significance

Active Publication Date: 2017-02-08
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a multi-functional secondary voltage and current comprehensive measurement and analysis device, which not only greatly reduces the problem of different accuracy and error of different sampling equipment affecting the test results, but also solves the problem that a test requires the cooperation of multiple people at the same time , improve the work efficiency of on-site experiment staff

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  • A multifunctional secondary voltage and current comprehensive measurement and analysis device

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Embodiment 1

[0008] Embodiment one, in figure 1 Among them, the present invention provides a multifunctional secondary voltage and current comprehensive measurement and analysis device, which is characterized in that it includes an AC sampling module assembly and a digital processing graphic display module, and the digital processing graphic display module includes a DPS data processing system, CPU central processing unit, external man-machine dialogue module and color display, the setting end of CPU central processing unit is connected with man-machine dialogue module, the AC sampling module assembly is connected with the signal input end of CPU central processing unit through DSP data processing system, and the communication The sampling module assembly includes three separate current sampling modules, three separate voltage sampling modules and two external expansion sampling modules. The external expansion sampling module communicates with the input end of the CPU central processing uni...

Embodiment 2

[0009] Embodiment 2, the present invention provides a multifunctional secondary voltage and current comprehensive measurement and analysis device, which is characterized in that it includes an AC sampling module assembly and a digital processing graphic display module, and the digital processing graphic display module includes DPS data processing System, CPU central processing unit, external human-machine dialogue module and color display, the setting terminal of CPU central processing unit is connected with man-machine dialogue module, and the AC sampling module assembly is connected with the signal input terminal of CPU central processing unit through DSP data processing system , the AC sampling module assembly includes six separate current sampling modules, six separate voltage sampling modules and two external expansion sampling modules. The external expansion sampling module communicates with the input end of the CPU central processing unit in a wireless or wired manner. ,...

Embodiment 3

[0010] Embodiment 3, the present invention provides a multifunctional secondary voltage and current comprehensive measurement and analysis device, which is characterized in that it includes an AC sampling module assembly and a digital processing graphic display module, and the digital processing graphic display module includes DPS data processing System, CPU central processing unit, external human-machine dialogue module and color display, the setting terminal of CPU central processing unit is connected with man-machine dialogue module, and the AC sampling module assembly is connected with the signal input terminal of CPU central processing unit through DSP data processing system , the AC sampling module assembly includes nine separate current sampling modules, nine separate voltage sampling modules and two external expansion sampling modules. The external expansion sampling module and the CPU central processing unit input are connected wirelessly or wiredly Communication conne...

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Abstract

The invention provides a multifunctional secondary voltage and current comprehensive measurement and analysis device. A setting end of a CPU (Central Processing Unit) is connected with a man-machine conversation module; an alternating-current sampling module assembly is connected with a signal input end of the CPU through a DSP (Digital Signal Processor) data processing system; and a signal output end of the CPU is sequentially connected with a color display. According to the multifunctional secondary voltage and current comprehensive measurement and analysis device disclosed by the invention, the problem that a test result is influenced by different precisions and errors of different sampling equipment is greatly reduced, the problem that one test needs many people to cooperate simultaneously is solved, and the working efficiency of field experimental workers is improved, so that the multifunctional secondary voltage and current comprehensive measurement and analysis device has actual wide popularization values and meanings to electric power industries.

Description

technical field [0001] The invention relates to a multifunctional secondary voltage and current comprehensive measurement and analysis device. Background technique [0002] At present, before the protection and measurement devices in the power system are put into formal operation, phase verification and load tests are required, which is to use the actual load to test whether the protection and measurement devices are correct in sampling and calculation of the primary equipment current voltage and protection differential current, and the protection judgment logic Whether it is normal or not, check the correctness of the phase sequence of different power sources and different voltage transformers. The currently used detection and test tools are mainly single-phase or three-phase clamp ammeters and voltmeters. After the secondary current and voltage are measured, it is necessary to comprehensively analyze and compare the data on the meters to determine the final detection resul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/25
Inventor 印吉景张澄李祥明何菲
Owner STATE GRID CORP OF CHINA
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