Examples Of Magnetic Field Calculations In Indoor Distribution Substations
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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