%0 Generic %1 okun2013comparison %A OKUN, O %A SHEVCHENKO, S %A KORPINEN, L %D 2013 %K Magnetic field line measures power reduction substation transmission %T Comparison of design measures to reduce 50-Hz magnetic fields of high voltage power objects %X This work examines some possible design measures for reducing magnetic fields generated outside high voltage power objects, such as substations and transmission lines. These measures include changing the suspension height, the distance between phases, and alternating the arrangement of phase conductors. For conducting comparisons of the measures, a well-known mathematical model based on the Biot-Savart law is used. The total magnetic field results in a geometric sum of the horizontal and vertical components of each phase. The efficiency of measures implementation at the design stage is considered on example power transmission lines of different configurations (horizontal and non-horizontal, single, and double circuit), types of voltage (110, 330, 400 kV), as well as low and high voltage busbars of typical projects of 110/10(6) kV power substations in Ukraine. It is shown that changing the construction of phases generally provides effective magnetic (as well as electric) field reduction in proximity to and far away from power objects. However, this solution is not considered suitable, as it would be restricted by the requirements of guidelines associated with providing safety and convenience of repair work at power substations as well as the swinging of cross wires and the provision of minimum air clearances at power lines. Furthermore, it would require an increase in cost for its implementation due to complications arising from tower and phase constructions. Therefore, in our opinion, magnetic field reduction measures connected with changing the phase sequence of conductors, in addition to local active and passive shielding, are of unique importance.

@conference{okun2013comparison, abstract = {This work examines some possible design measures for reducing magnetic fields generated outside high voltage power objects, such as substations and transmission lines. These measures include changing the suspension height, the distance between phases, and alternating the arrangement of phase conductors. For conducting comparisons of the measures, a well-known mathematical model based on the Biot-Savart law is used. The total magnetic field results in a geometric sum of the horizontal and vertical components of each phase. The efficiency of measures implementation at the design stage is considered on example power transmission lines of different configurations (horizontal and non-horizontal, single, and double circuit), types of voltage (110, 330, 400 kV), as well as low and high voltage busbars of typical projects of 110/10(6) kV power substations in Ukraine. It is shown that changing the construction of phases generally provides effective magnetic (as well as electric) field reduction in proximity to and far away from power objects. However, this solution is not considered suitable, as it would be restricted by the requirements of guidelines associated with providing safety and convenience of repair work at power substations as well as the swinging of cross wires and the provision of minimum air clearances at power lines. Furthermore, it would require an increase in cost for its implementation due to complications arising from tower and phase constructions. Therefore, in our opinion, magnetic field reduction measures connected with changing the phase sequence of conductors, in addition to local active and passive shielding, are of unique importance.}, added-at = {2021-02-12T11:59:53.000+0100}, author = {OKUN, O and SHEVCHENKO, S and KORPINEN, L}, biburl = {https://www.bibsonomy.org/bibtex/2aca78dd1a9340d0aab00413eeac32560/chkokalis}, interhash = {db091bf2a667edc80b5eddee90f03438}, intrahash = {aca78dd1a9340d0aab00413eeac32560}, keywords = {Magnetic field line measures power reduction substation transmission}, timestamp = {2021-02-12T16:11:24.000+0100}, title = {Comparison of design measures to reduce 50-Hz magnetic fields of high voltage power objects}, year = 2013 }