TOROIDAL ROGOWSKI COIL WITH AIR GAPPED MAGNETIC CORE

摘要

Discloses is a toroidal Rogowski coil with air gapped magnetic core. The toroidal Rogowski coil comprises a cavity/circular sleeve made up with nonmagnetic material, and a magnetic core having a plurality of magnetic pieces arranged symmetrically within cavity/circular sleeve forming air gaps in a magnetic core path. The plurality of magnetic pieces are insulated by putting insulating material therebetween. The toroidal Rogowski coil further comprises a secondary winding wound over the cavity/circular sleeve. Specifically, the cavity/circular sleeve with the plurality of magnetic pieces therein forms a central opening for accommodating primary current carrying conductor of which current is to be measured. Figure 7