| Popis: |
Magnetic shielding effect when the nonmagnetic material surrounds four aspects of electric power line circumference was examined by both of a physical experiment with three-phase electric power line and a simulation experiment with finite element method. In the results, the magnetic shielding effect by nonmagnetic materials was got, even if it was the type of plates surrounding all four sides of cables. Then, with the thickness of nonmagnetic materials and the frequency, it was confirmed that magnetic shielding effects increased. |
