The Shielding of Magnetic field of 765kV transmission line by use of μ-metal

2000??? ??? ?????? ???????????? ?????? ??? ????????? ?????? ????????? ??? ????????? ?????? ?????? ???????????? ????????? ??????????????? ???????????? ??? ????????? ???????????? ????????? ????????? ???????????? ?????????, ??????????????? ?????? 765kV??? ???????????? ???????????? ?????? ?????? ?????? ????????? ????????? ?????? ?????? ??????. ?????? ???????????? ?????????????????? ???????????? ??????????????? ?????? ?????? ???????????? ?????? ?????? ?????? ?????? ????????? ?????? ????????? ??????????????? ??????. ????????? ??? ??????????????? ?????? ??????????????? ??? 80,000[H/m]????????? ?????????(??r : relative permeability) ??? ?????? ??????????????? ??-metal??? ???????????? 765kV??? ?????????(2,000A/single phase)??? ?????? ???????????? ???????????????, ?????? ?????? ??-metal ??? ???????????? ????????? ??? ?????? magnetic probe ??? ?????? ?????? ???????????????. ??? ?????? magnetic probe??? ?????? ????????? ????????? ?????? ??? ????????? ?????? ??-metal??? layer??? ????????? ?????? ???????????? ?????? ???????????? ????????? ??? ?????????