A magnetic field simulating device for current measuring instruments testing purpose

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 th...

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Bibliographic Details
Published in:International journal of numerical modelling 2015-05, Vol.28 (3), p.301-309
Main Authors: Samplón-Chalmeta, M., Usón, Antonio, Letosa, Jesús, Mur-Amada, Joaquín
Format: Article
Language:English
Subjects:
Approximation
Calibration
Conductors (devices)
crosstalk
current
current measurement
current transformers
Devices
Displacement
electric variables measurement
electrical engineering
Magnetic fields
Measuring instruments
test equip- ment
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Summary: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.
ISSN:0894-3370
1099-1204
DOI:10.1002/jnm.2006