Title |
Measurement and Analysis of Electric and Magnetic Fields near 345 [ kV ] Transmission Tower |
Authors |
이복희 ; 이승칠 ; 안창환 ; 길형준 ; 전덕규 ; 길경석 |
Abstract |
In this paper, the measurements of ELF electric and magnetic fields due to double circuit 345[kV] transmission lines are male using planar-type electric field sensor and multitum loop-type magnetic field sensor, and the magnitudes of electric and magnetic fields are illustrated by a three-dimensional plot. Also, in onder to predict the magnetic field strength with load variation, a typical daily load current curves of the transmission lines are displayed because the magnetic field is changed with load current. Experimental results of ELF electric and magnetic fields along center line versus lateral distance are compared with the theoretical values computed by using the FIELDS program. The electric field intensity in and around a transmission tower is lowered, and the greatest paint of the magnetic field is shifted to the heavy load line but generally is given the trend that the peak value appear at the central part of the transmission tower. |