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A magnetic field simulating device for current measuring instruments testing purpose
Author(s) -
SamplónChalmeta M.,
Usón Antonio,
Letosa Jesús,
MurAmada Joaquín
Publication year - 2014
Publication title -
international journal of numerical modelling: electronic networks, devices and fields
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 30
eISSN - 1099-1204
pISSN - 0894-3370
DOI - 10.1002/jnm.2006
Subject(s) - conductor , electrical conductor , current (fluid) , ampere , transformer , current transformer , magnetic field , displacement current , calibration , electrical engineering , displacement (psychology) , computer science , mechanics , physics , voltage , engineering , mathematics , geometry , psychology , quantum mechanics , psychotherapist
Summary In this paper, it presented a device intended to reproduce magnetic fields of differents shapes to help the test or calibration of current measuring instruments based on Ampere's Law (current transformers, current clamps, and Rogowsky probes). In particular, this device can reproduce the effect of uncentered currents without requiring any mechanical displacement of the conductor or the device under test during its operation. Any uncentered or distributed current is approximated by a linear combination of currents flowing along a specific set of conductors. First, the theoretical vectorial analysis is presented, and second, a specific arrangement of conductors is used to illustrate the method. A number of measurements have been taken to check the results. Copyright © 2014 John Wiley & Sons, Ltd.