Acquisition device for current transformer

A current transformer and acquisition device technology, which is applied in the field of current transformer acquisition devices, can solve problems such as low sampling rate and time delay, and achieve the effect of reducing the number of interfaces, reducing demand, and ensuring normal operation

Active Publication Date: 2021-04-30
BEIJING SIFANG JIBAO AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a collection device for current transformers, which aims to solve the above-mentioned problems of time delay and low sampling rate

Method used

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  • Acquisition device for current transformer
  • Acquisition device for current transformer
  • Acquisition device for current transformer

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Embodiment Construction

[0025] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0026] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0027] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, componen...

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Abstract

The present disclosure relates to an acquisition device for a current transformer. The acquisition device includes a plurality of sampling units, wherein the plurality of sampling units include a current sampling control unit, an AD / DA loop and an optical transmitter to form a sampling loop, wherein the current sampling control unit is connected to the AD / DA loop ; The AD / DA loop, one end is connected with the current sampling control unit, and the other end is connected with the optical transmitter; the optical transmitter is connected with the AD / DA loop. The present invention can acquire the current sampling signal more accurately by utilizing the sampling loop in the acquisition device, without subsequently correcting the current sampling signal, thereby avoiding time delay and sampling distortion.

Description

technical field [0001] The disclosure relates to the field of electrical measurement, in particular to a collection device for a current transformer. Background technique [0002] With the construction of ultra-high voltage and smart grids in my country, the reliability requirements of power systems are getting higher and higher. The increase of grid voltage level is accompanied by the increase of grid short-circuit current level, which poses greater challenges to the performance of electrical equipment. . The current transformer is one of the important electrical equipment in the power system, and it is also an important component for various secondary equipment to monitor and perceive the real operating status of the primary system. It is widely used in power system monitoring, protection, ranging and wave recording. [0003] Optical current transformers are different from traditional current transformers. Based on the principle of Faraday’s magneto-optic effect, optical c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/25G01K11/32
CPCG01K11/32G01K11/3213G01R19/25
Inventor 刘海锋孟祥强李秦张超袁孝纯叶艳军徐刚秦红霞
Owner BEIJING SIFANG JIBAO AUTOMATION
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