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System and device for verifying electronic current transformer

A technology of current transformer and calibration device, which is applied in the field of electronic current transformer calibration, can solve problems such as poor calibration reliability, achieve the effect of improving accuracy and efficiency, and meeting the needs of mass production

Inactive Publication Date: 2017-08-18
PINGGAO GRP +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an electronic current transformer calibration system to solve the problem of poor calibration reliability of existing test devices

Method used

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  • System and device for verifying electronic current transformer
  • System and device for verifying electronic current transformer
  • System and device for verifying electronic current transformer

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Embodiment Construction

[0021] Embodiment of Electronic Current Transformer Calibration System

[0022] The electronic current transformer calibration system includes the electronic current transformer to be tested and the electronic current transformer calibration device for calibrating the electronic current transformer. Among them, the electronic current transformer is a conventional equipment. The embodiment does not describe the structure and working principle of the transformer itself in detail. The electronic current transformer calibration device will be described in detail below.

[0023] The verification device includes a standard current transformer and a control processing part, in this embodiment, such as figure 1 As shown, the control processing part is composed of two parts, namely the electronic transformer calibrator and the main control module. Both parts have corresponding control functions. These two parts jointly realize all the control and signal processing of the calibration. ...

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Abstract

The invention relates to a system and device for verifying an electronic current transformer. The system is provided with a standard current transformer, a control processing part, a to-be-detected electronic current transformer, and a temperature adjustment device which is used for adjusting the temperature of a detection environment of the to-be-detected electronic current transformer. The control processing part enables the current signals, detected under different detection environment temperatures, of the electronic current transformer to be compared with a standard current signal, and carries out the corresponding processing of the comparison result, so as to achieve the verification of the electronic current transformer. The system can achieve the full-automatic verification of the detection precision during the batch production and verification of related electronic current transformers, and effectively improves the verification precision and efficiency. Moreover, the detection precision obtained through verification is closer to the actual detection precision, so the system is higher in verification reliability, and is higher in reliability of detection precision.

Description

technical field [0001] The invention relates to an electronic current transformer calibration system and a calibration device, and belongs to the technical field of electronic current transformer calibration. Background technique [0002] With the increase of the voltage level of the power system and the improvement of the system capacity, the miniaturization and intelligence requirements of the high-voltage switchgear are put forward. The traditional electromagnetic current transformer has a complex insulation structure, large volume, and high cost. At the same time, its problems such as magnetic saturation and ferromagnetic resonance are also relatively prominent, making it difficult to meet the development needs of the power grid. The electronic current transformer has the advantages of compact structure, small size, no magnetic saturation, wide frequency band response, etc., and has a good market prospect. At present, with the advancement of the construction of smart su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/02
CPCG01R35/02
Inventor 宋亚凯张一茗郭煜敬姚永其金光耀李少华高群伟张文涛
Owner PINGGAO GRP
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