Title:
Shielding effectiveness for a three-phase transformer at various harmonic frequencies
Author(s):
A. Di Pasquale G. Antonini A. Orlandi
Source:
IET Sci. Meas. Technol.
Vol./Issue/Date:
Vol. 3, Iss. 2, 26th June 2008
Year:
2009
Page(s):
175-183
Keywords:
Abstract:
A two-step optimisation procedure for the design of a passive shield aimed at decreasing the lowfrequency
magnetic field using a transformer is presented. After having introduced the relevant characteristics
of the medium size three-phase transformer, the procedure is described in detail. It is based on the
decomposition in the harmonic component of the radiated field, which is associated with the direct, inverse
and homopolar sequences of the current of the transformer. The effect of the optimised shield is verified by
measurements.
Document:
Reference Id:
414
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