剩余电流互感器
The residual magnetic flux intensity makes the starting work point of current transformer change on B-H curve, and hence the magnetic saturation state is aggravated in shorter time, which is the main reason to cause the misoperation accident of differential protection.
铁心剩磁的存在使电流互感器在B-H曲线上的起始工作点发生变化,加重了饱和程度和缩短进入饱和时间,这是差动保护误动的重要原因。
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