2019 | vol. 67 | nr. 4 | art. 7

Magnetic Field Distribution from a Transformer Substation of 1600 kVA, 20/0.4 kV and the Occupational Exposure Implications

This paper analyses the distribution of the magnetic field sizes from a transformer substation with the apparent power 1600 kVA and the voltage level 20 / 0.4 kV. The electric fields induced in tissues, when the body moves in a strong magnetic field can produce sensory effects such as retinal phosphenes, as well as transient changes in brain function. The exposure limit values (ELVs) that have health effects are different depending on the frequency range. The degree of the occupational exposure results through the analysis of the values of the magnetic field sizes obtained with the magnetic field tester, Hioki FT 3470-50. The obtained values are compared with the limits imposed by the valid standards, regarding the occupational exposure to the electromagnetic fields.
Keywords: Electric Field, Magnetic Field, Magnetic Flux Density, Exposure Level Occupational, Exposure Level General Public
To cite this article: Eleonora DARIE, Lucian PÎSLARU-DĂNESCU, “Distribution of Magnetic Field Sizes from a Transformer Substation”, in: Electrotehnica, Electronica, Automatica (EEA), 2019, vol. 67, no. 4, pp. 50–57, ISSN 1582–5175.