电子仪表变压器保护电流双AD采集不一致的研究

S. Bai, Lin-cui Zeng, Liyi, Xiao-Hua Wang, M. Rong
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引用次数: 0

摘要

作为新一代智能变电站的关键设备,电子仪表变压器的数据测量是间隔装置进行保护计算的唯一依据。因此,测量的准确性对整个变电站的安全运行至关重要。本文以实际工程应用为切入点,以电子仪表变压器合并单元输出保护电流双ad采样数据不一致为例,结合工程具体配置及报警现象,从二次调理电路方面深入研究分析双ad不一致的原因及解决办法。电子仪表变压器集热器的AD采样与归并单元数据处理。该方案已成功地应用于工程实践。本文提出的问题分析和解决方法为电子仪表变压器的可靠性设计提供了进一步的参考。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Research on Inconsistent Acquisition of Dual AD in Protection Current of Electronic Instrument Transformer
As the key equipment for a new generation of smart substations, the data measurement of electronic instrument transformers is the only basis for the protection calculations performed by the spacer device. Therefore, the accuracy of the measurement is critical to the safe operation of the entire substation. As an entry point from actual project application, this article takes dual-AD sampling data inconsistency of output protection current in the merging unit of the electronic instrument transformer, and based on the specific configuration of the project and the alarm phenomenon, a deep research and analysis was carried out to explain the causes in inconsistency between the dual ADs and the corresponding solutions from the aspects of secondary conditioning circuit, AD sampling and merging unit data processing of the electronic instrument transformer collector. This scheme has been successfully applied in engineering practice. The problem analysis and solutions proposed in this paper provide a further reference for the reliability design of electronic instrument transformers.
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