Research on Key Technologies of Electronic Transformer Acquisition Unit

YIN Ming; ZHOU Shui-bin; ZHOU Li-juan; MU Tao

doi:10.13296/j.1001-1609.hva.2012.12.011

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Research on Key Technologies of Electronic Transformer Acquisition Unit

更新时间：2025-04-26

- Research on Key Technologies of Electronic Transformer Acquisition Unit
- High VoltageApparatus Vol. 48, Issue 12, Pages: 49-53(2012)
- 作者机构：
  
  许继电气技术中心
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2012.12.011
  CLC： TM451
- Published：2012
- 稿件说明：
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[1]尹明,周水斌,周丽娟,牟涛.电子式互感器采集单元关键技术研究[J].高压电器,2012,48(12):49-53.

YIN Ming, ZHOU Shui-bin, ZHOU Li-juan, et al. Research on Key Technologies of Electronic Transformer Acquisition Unit[J]. High voltageapparatus, 2012, 48(12): 49-53.
[1]尹明,周水斌,周丽娟,牟涛.电子式互感器采集单元关键技术研究[J].高压电器,2012,48(12):49-53. DOI： 10.13296/j.1001-1609.hva.2012.12.011.

YIN Ming, ZHOU Shui-bin, ZHOU Li-juan, et al. Research on Key Technologies of Electronic Transformer Acquisition Unit[J]. High voltageapparatus, 2012, 48(12): 49-53. DOI： 10.13296/j.1001-1609.hva.2012.12.011.

摘要

电子式互感器采集单元用来对传感头输出信号进行调理、积分、采样输出等

其具体实现方式决定了互感器整体的精度、暂态响应及可靠性。笔者分别就模拟输出型、数字输出型采集单元如何克服温漂、电源监视、提高采样精度、实现传感头互换、双电源热备等关键技术点等进行阐述

并讨论了数字积分对谐波及暂态的影响。两年多的现场实践证明

这些措施使产品有效发挥了性能、成本上的优势。

Abstract

Electronic transformer acquisition unit is used to adjust

integrate

and A/D-convert the signal from transformer sensing head.The detailed implementation means of the acquisition unit decide the precision

transient response and reliability of the transformer.In this paper

several key technologies are described

including analog-and digital-type sampling unit’s power supply supervision

temperature drift mitigation

sampling accuracy improvement

interchangeability of transformer sensing head

and hot-standby redundancy of power supply.The influence of digital integration on harmonics and transient states is discussed.Practical applications verify the improvements in both performance and cost of the electronic transformers with these methods.

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Related Institution

Electric Power Research Institute of Guizhou Power Grid Co.,Ltd.

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