The offset saturation of transformers as a result of the injection of geomagnetically induced current (GIC) induce high magnitude of harmonic-injections to the system, especially of low-order harmonics.
当地磁感应电流(GIC)经由接地中性点流入变压器时,变压器会出现直流偏磁,向系统注入大量的谐波,特别是低次谐波。
参考来源 - 地磁感应电流（GIC）对直流输电影响的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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