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Electronic current transformer

A current transformer and electronic technology, applied in the direction of inductors, voltage/current isolation, instruments, etc., can solve the problems of low detection efficiency and unreasonable design

Inactive Publication Date: 2016-04-20
STATE GRID SHANDONG ELECTRIC POWER CO QINGZHOU POWER SUPPLY CO +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the design of electronic transformers in the prior art is not reasonable enough, and the structure of primary equipment and secondary equipment still needs to be optimized. Moreover, the existing electronic transformers are generally not equipped with shell skeleton defect detection equipment, and still rely on manual inspection. mode, the detection efficiency is not high

Method used

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Embodiment Construction

[0017] Embodiments of the electronic current transformer of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] With the continuous application of many new materials, many new types of transformers have appeared, and electromagnetic transformers have been fully developed. Among them, iron core current transformers are suitable for dry type, oil-immersed type and gas-insulated type. meet the development needs of electric power construction. However, with the continuous increase of power transmission capacity, the continuous improvement of grid voltage level and the continuous improvement of protection requirements, the general iron core current transformer structure has gradually exposed its incompatible weaknesses. Weaknesses such as saturation, ferromagnetic resonance, small dynamic range, and narrow frequency band are difficult to meet the development needs of the new generation of power system automation and power di...

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PUM

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Abstract

The invention relates to an electronic current transformer, comprising an electronic current transformer body, an image detection apparatus and a DSP (digital signal processor) chip by company TI. The image detection apparatus is used for analyzing frame defects of a housing of the electronic current transformer body, the DSP chip by company TI receives frame analysis results and transmits them to a display apparatus for displaying. Through the invention, it is possible to automatically analyze the type of frame defects of the electronic current transformer while optimizing the structure of the electronic current transformer.

Description

[0001] This invention is a divisional application of a patent with the application number 201510782589.X, the application date is November 16, 2015, and the invention name is "electronic current transformer". technical field [0002] The invention relates to the field of electronic current transformers, in particular to an electronic current transformer. Background technique [0003] The structure of an ordinary transformer is as follows: The structure of an ordinary current transformer is relatively simple, consisting of mutually insulated primary windings, secondary windings, iron cores, frames, housings, terminals, etc. Its working principle is basically the same as that of a transformer. The number of turns (N1) of the primary winding is less, and it is directly connected in series to the power line. When the primary load current (I1) passes through the primary winding, the alternating magnetic flux induction generated produces proportionally reduced Secondary current (I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R15/18G01N21/95H01F38/32
CPCG01N21/95G01N2021/8887G01R15/18H01F38/32
Inventor 王爱玲
Owner STATE GRID SHANDONG ELECTRIC POWER CO QINGZHOU POWER SUPPLY CO