Open AccessElectromagnetic safety in points of overhead power lines and electrified railroads crossing
Author(s) -
N.V. Buyakova,
Vasiliy Zakaryukin,
Andrey Kryukov
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/643/1/012018
Subject(s) - electromagnetic interference , traction (geology) , electromagnetic field , overhead line , magnetic field , traction substation , electrical engineering , overhead (engineering) , electric power transmission , physics , amplitude , power (physics) , field strength , voltage , acoustics , engineering , optics , mechanical engineering , quantum mechanics , transformer
Traction networks of alternating current electrified railroads generate large electromagnetic fields with 50 Hz frequency. In points of overhead power lines (OPL) and electrified railroads crossing, traction network electromagnetic fields and overhead power lines interfere with each other, which can result in increase in intensities and appearance of the field complex spatial structure. To determine intensities of electrical and magnetic fields which are created in points of crossing, a procedure for intensities summing has been developed, which is based on fields intensities calculation with Fazonord software application, the fields corresponding to traction network and overhead power line mode. Modeling results indicated that intensities of traction network magnetic field are increased up to 13% by interference of 220 kV intensities power lines magnetic field, while at a regulated height of 1.8 m, magnetic field amplitude equals to 82 A/m. At the same time, OPL can increase traction field electrical field strength in the point of crossing by 66% while reaching 5.5 kV/m at 1.8 m height.