励磁涌流
差动保护
变压器
小波变换
继电器
小波
保护继电器
计算机科学
电子工程
电流互感器
算法
工程类
电气工程
功率(物理)
电压
人工智能
物理
量子力学
作者
Hashem Mortazavi,H. Khorashadi‐Zadeh
标识
DOI:10.1109/icpst.2004.1460278
摘要
This paper presents a new approach to developing techniques for the inrush restraint based on wavelet for transformer differential relays. When a power transformer is energized, the resulting inrush current can cause a differential relay to issue a false trip signal. The establishment of inrush in power transformer is becoming unreliable in existing numerical protection. The presented technique is based on the detection of inrush generated transient signals using wavelet analysis. The results of simulation indicate that the proposed method is very effective in detecting inrush with a high accuracy and reliability.
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