... Harmonic current正弦电流 Harmonic restraining谐波制动 Healthy phases非故障相 ...
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While, due to modern advanced manufacture arts and material of transformer, the content of second-harmonic in inrush current decreases. Relay with Second-harmonic restraining technique may maloperate and delay the operate time.
这导致了二次谐波制动的继电器判断延时甚至误动作。
参考来源 - 小波变换在变压器差动保护中的应用·2,447,543篇论文数据，部分数据来源于NoteExpress
设计了一种集成电路型具有二次五次谐波制动的变压器差动继电器。
An integrated-circuit transformer differential relay including secondary and fifth harmonics suppressor is designed.
数字仿真结果表明，本方法可准确识别故障电流和励磁涌流，即使在空载合闸于内部故障时，保护继电器也能迅速可靠动作，避免了采用二次谐波制动导致的误动问题。
The results of the digital simulation show that the method can identify fault current and energizing inrush current precisely and makes it rapid and reliable for the protective relay to …
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