FAULT CURRENT LIMITER WITH SHIELD AND ADJACENT CORES

摘要

In a fault current limiter (FCL) of a saturated core type having at least one coil wound around a high permeability material, a method of suppressing the time derivative of the fault current at the zero current point, the method including the step of: utilising an electromagnetic screen or shield around the AC coil to suppress the time derivative current levels during zero current conditions.