The transfer impedance of cables with a nearby return conductor and a noncentral inner conductor

M.J.A.M. Helvoort, van; A.P.J. Deursen, van; P.C.T. Laan, van der

doi:10.1109/15.385900

The transfer impedance of cables with a nearby return conductor and a noncentral inner conductor

M.J.A.M. Helvoort, van, A.P.J. Deursen, van, P.C.T. Laan, van der

Electrical Energy Systems

Research output: Contribution to journal › Article › Academic › peer-review

4 Citations (Scopus)

Abstract

The transfer impedance Z/sub t/ of a cable is often assumed to be a characteristic of the shield only. We investigate the limits of this assumption by calculations and measurements. The first test cable was formed by a solid copper tube (ldquoshieldrdquo) and a wire inside; several positions, also non-central, were chosen for the wire. The common mode current (between 10 Hz and 100 kHz) through the tube had as return path a single wire, which was placed at several positions, near and at some distance from the shield. A second cable with a braided shield was tested as well. The results show that both the differential mode and the common mode circuit have to be carefully defined for a particular Z/sub t/. Varying either circuit may alter Z/sub t/ drastically. Consequently, the Z/sub t/ of a particular cable measured in a triaxial setup, is a characteristic of that setup and cannot always be used in another setup as in for instance cable bundles

Original language	English
Pages (from-to)	301-306
Number of pages	6
Journal	IEEE Transactions on Electromagnetic Compatibility
Volume	37
Issue number	2
DOIs	https://doi.org/10.1109/15.385900
Publication status	Published - 1995

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@article{4901bd104bfa47bf96f9ffb61dbacd1c,

title = "The transfer impedance of cables with a nearby return conductor and a noncentral inner conductor",

abstract = "The transfer impedance Z/sub t/ of a cable is often assumed to be a characteristic of the shield only. We investigate the limits of this assumption by calculations and measurements. The first test cable was formed by a solid copper tube (ldquoshieldrdquo) and a wire inside; several positions, also non-central, were chosen for the wire. The common mode current (between 10 Hz and 100 kHz) through the tube had as return path a single wire, which was placed at several positions, near and at some distance from the shield. A second cable with a braided shield was tested as well. The results show that both the differential mode and the common mode circuit have to be carefully defined for a particular Z/sub t/. Varying either circuit may alter Z/sub t/ drastically. Consequently, the Z/sub t/ of a particular cable measured in a triaxial setup, is a characteristic of that setup and cannot always be used in another setup as in for instance cable bundles",

author = "{Helvoort, van}, M.J.A.M. and {Deursen, van}, A.P.J. and {Laan, van der}, P.C.T.",

year = "1995",

doi = "10.1109/15.385900",

language = "English",

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pages = "301--306",

journal = "IEEE Transactions on Electromagnetic Compatibility",

issn = "0018-9375",

publisher = "Institute of Electrical and Electronics Engineers",

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TY - JOUR

T1 - The transfer impedance of cables with a nearby return conductor and a noncentral inner conductor

AU - Helvoort, van, M.J.A.M.

AU - Deursen, van, A.P.J.

AU - Laan, van der, P.C.T.

PY - 1995

Y1 - 1995

N2 - The transfer impedance Z/sub t/ of a cable is often assumed to be a characteristic of the shield only. We investigate the limits of this assumption by calculations and measurements. The first test cable was formed by a solid copper tube (ldquoshieldrdquo) and a wire inside; several positions, also non-central, were chosen for the wire. The common mode current (between 10 Hz and 100 kHz) through the tube had as return path a single wire, which was placed at several positions, near and at some distance from the shield. A second cable with a braided shield was tested as well. The results show that both the differential mode and the common mode circuit have to be carefully defined for a particular Z/sub t/. Varying either circuit may alter Z/sub t/ drastically. Consequently, the Z/sub t/ of a particular cable measured in a triaxial setup, is a characteristic of that setup and cannot always be used in another setup as in for instance cable bundles

AB - The transfer impedance Z/sub t/ of a cable is often assumed to be a characteristic of the shield only. We investigate the limits of this assumption by calculations and measurements. The first test cable was formed by a solid copper tube (ldquoshieldrdquo) and a wire inside; several positions, also non-central, were chosen for the wire. The common mode current (between 10 Hz and 100 kHz) through the tube had as return path a single wire, which was placed at several positions, near and at some distance from the shield. A second cable with a braided shield was tested as well. The results show that both the differential mode and the common mode circuit have to be carefully defined for a particular Z/sub t/. Varying either circuit may alter Z/sub t/ drastically. Consequently, the Z/sub t/ of a particular cable measured in a triaxial setup, is a characteristic of that setup and cannot always be used in another setup as in for instance cable bundles

U2 - 10.1109/15.385900

DO - 10.1109/15.385900

M3 - Article

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JO - IEEE Transactions on Electromagnetic Compatibility

JF - IEEE Transactions on Electromagnetic Compatibility

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