B-H Curve Based on Core and Asymmetric Magnetizing Current in DC-Biased Transformers 直流偏磁条件下电力变压器铁心B-H曲线及非对称励磁电流
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。
Research on new nondestructive measurement method of B-H curve of soft magnetic materials with sheet geometry 薄片形软磁材料B-H曲线无损检测新方法研究
A review on this topic is given in this paper. Some important notions about B-H curve are clarified, and suggestions for further investigation are also proposed. 澄清了关于B~H曲线的某些概念,并提出一些需要进一步研究的问题。