Details

Autor(en) / Beteiligte

• Wagenaars, P.
• Wouters, P.A.A.F.
• Van Der Wielen, P.C.J.M.
• Steennis, E.F.

Titel

Approximation of transmission line parameters of single-core and three-core XLPE cables

Ist Teil von

• IEEE transactions on dielectrics and electrical insulation, 2010-02, Vol.17 (1), p.106-115

Ort / Verlag

New York: IEEE

Erscheinungsjahr

2010

Quelle

IEEE/IET Electronic Library (IEL)

Beschreibungen/Notizen

• A transmission line model of a power cable is required for the analysis of the behavior of high-frequency phenomena, such as partial discharges, lightning impulses and switching transients, in cables. A transmission line is characterized by its characteristic impedance, attenuation coefficient and propagation velocity. The semiconducting layers in an XLPE cable have a significant influence on these parameters. Unfortunately, the dielectric properties of these layers are usually unknown and can differ between similar types of cables. In this paper it is shown that nevertheless the characteristic impedance and propagation velocity of single-core and three-core XLPE cables can be estimated using available information from the cable specifications. The estimated values are validated using pulse response measurements on cable samples.