Over excitation describes a condition of excess flux~ in an electromagnetic device that will saturate the core steel, producing high-eddy current losses in the core and adjacent conducting materials.

• 过励磁表示电磁设备中有磁通过量的状态,此过量的磁通会使铁芯饱和,使铁芯和邻近导电材料中产生很大的涡流损耗。