报告详情
Effects of Stray Current on Transferring Characteristics of Current Transformer
编号：44
访问权限：仅限参会人
更新：2022-08-29 10:55:28 浏览：73次
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摘要
DC bias may affect the transferring characteristics of the current transformer, threatening the operation of relay protection. Compared with the high voltage direct current (HVDC) transmission in the unipolar-earth loop operation mode and geomagnetically induced current (GIC), the amplitude of the stray current is smaller, and the randomness and fluctuation are larger and accompanied by sudden changes. The amplitude-frequency characteristics of stray currents are studied. According to the equivalent circuit of current transformer, the transmission characteristics and the saturation mechanism of current transformer due to stray current are discussed. Then simulation models are developed in PSCAD/EMTDC. Simulations are conducted to analyze current transformer transient saturation and partial transient saturation, the results of which demonstrate that the stray current is composed of a variety of low-amplitude low-frequency components, which amplitude, frequency and duration are the influencing factors that affect the CT transient transfer characteristics.
关键词
stray current; current transformer; DC bias; time-to-saturation
报告人
ZHANG Guoxin
Shandong University稿件作者
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重要日期
-
会议日期
09月25日
2022
至09月29日
2022
-
08月15日 2022
提前注册日期
-
09月10日 2022
报告提交截止日期
-
11月10日 2022
注册截止日期
-
11月30日 2022
初稿截稿日期
-
11月30日 2022
终稿截稿日期
主办单位
IEEE DEIS
承办单位
Chongqing University
联系方式
- Zhengyong Huang
- 61******@qq.com
历届会议
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2020年09月06日 中国 Beijing
2020 IEEE International Conference on High Voltage Engineering and Application -
2018年09月10日 希腊
2018 IEEE International Conference on High Voltage Engineering and Application -
2016年09月19日 中国 Chengdu, China
2016 IEEE International Conference on High Voltage Engineering and Application
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