Author(s)

T. Keikko, S. Kuusiluoma, M. Suojanen, P. Menonen, L Korpinen

Abstract

Examples of magnetic field calculations in indoor distribution substations T. Keikko, S. Kuusiluoma, M. Suojanen, P. Menonen, L. Korpinen Department of Electrical Engineering, Tampere University of Technology, Finland Abstract The magnetic fields from indoor distribution substations have been studied for several years now at Tampere University of Technology (TUT). The need to study the fields caused by distribution substations and the means of reducing them, has mainly arisen from practical problems. One reason for this is disturbances caused by power frequency magnetic fields in some sensitive appliances. Another reason for calculations is the EMC standards, which set immunity levels for magnetic fields (generally 3.8 /iT and for displays 1.3 /iT) [1,2]. The topic has been discussed for several years now, and a more accurate way of calculating the magnetic fields in a room above or beside a substation has been developed. The aim of this study is to compare the measured and calculated va

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