HV Cable Diagnostic by Time Domain Reflectometry or Frequency Domain Analysis?

A Comparison of Sensitivity to Fault Impedance and Cable Length

verfasst von

Peter Werle, Younes Norouzi, Christian Frohne

Abstract

Frequency domain analysis (FDA) and Time Domain Reflectometry (TDR) are two cable fault localization methods. FDA and TDR employ changes in the impedance
of a cable caused by damages or aging. Those changes might be very small or far from the position of the measurement devices and reach the physical limitation of applicability of these methods. In this paper measurements and simulation results are presented, which evaluate the limitations of both methods in identifying of deviations in cable properties, detectable fault impedances, and measurable cable lengths. Moreover, this contribution gives a theoretical and practical comparison of FDA and TDR method.

Organisationseinheit(en)

Fachgebiet Hochspannungstechnik und Asset Management (Schering-Institut)
Institut für Elektrische Energiesysteme

Externe Organisation(en)

Nexans Deutschland GmbH

Typ

Paper

Anzahl der Seiten

6

Publikationsdatum

2019

Publikationsstatus

Veröffentlicht

Elektronische Version(en)

http://www.jicable.org/TOUT_JICABLE_FIRST_PAGE/2019/2019-F2-13_page1.pdf (Zugang: Offen)