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DC current mutual inductor step response detection system based on wave erection current source

A technology of DC current and step response, which is applied in the parts, instruments, measuring electricity and other directions of electrical measuring instruments, can solve the problems such as the inability to meet the accurate requirements of DC transformers

Pending Publication Date: 2021-02-19
国网河北省电力有限公司营销服务中心 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional DC current transformer control calibration method cannot meet the accuracy requirements of the DC transformer field calibration and calibration test related regulations

Method used

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  • DC current mutual inductor step response detection system based on wave erection current source
  • DC current mutual inductor step response detection system based on wave erection current source
  • DC current mutual inductor step response detection system based on wave erection current source

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Embodiment Construction

[0031] The embodiments of the present invention are provided in order to disclose the present invention in detail and completely, and to fully convey the scope of the present invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0032] Unless otherwise stated, the terms (including scientific and technical terms) used herein have the meanings commonly understood by those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or overly formal meanings.

[0033] combine figure 1 , a DC current transformer step response detection system based on a steepening frontier current source, which includes a steeper frontier current source, an ana...

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Abstract

The invention relates to a DC current mutual inductor step response detection system based on wave erection current source. The DC current mutual inductor step response detection system comprises a wave erection current source, an analog acquisition unit, a digital quantity acquisition unit, an analog-to-digital conversion unit, a digital-to-analog conversion unit and a compatible analog quantityand digital quantity step characteristic tester. According to the invention, the DC current mutual inductor with analog quantity output and digital quantity output can be detected at the same time, the requirements of DC mutual inductor on-site verification and calibration test related regulations on accuracy are met, and the influence caused by DC mutual inductor faults is avoided.

Description

technical field [0001] The invention belongs to the field of detection of DC metering equipment, and in particular relates to a step response detection system of a DC current transformer based on a steepening frontier current source. Background technique [0002] The DC current transformer is the main equipment for measuring the DC current value transformation in the DC transmission and distribution system, and its characteristic parameters and key indicators are directly related to the stable operation of the DC transmission system. In actual operation, the transient characteristics of the DC transformer affect the stable operation of the DC system and cause large economic losses. Therefore, it is necessary to carry out effective on-site detection and testing of the DC transformer before it is put into operation and during operation, so as to judge the actual performance and operating conditions of the DC transformer on the spot, and avoid damage caused by the transient cha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/02G01R1/28
CPCG01R35/02G01R1/28
Inventor 石振刚陶鹏申洪涛孙冲张林浩王鸿玺
Owner 国网河北省电力有限公司营销服务中心