Partial Discharges in XLPE Insulated Cable under Superimposed Transient Voltages

Conference paper (2019)

Authors

J. Wu DC systems, Energy conversion & Storage - EEMCS
P.V.M. van Nes ESP LAB - EEMCS
A. R. Mor DC systems, Energy conversion & Storage - EEMCS
J.J. Smit EEMS - General
Research Group
DC systems, Energy conversion & Storage (EEMCS) (TU Delft)
More Info
expand_more

Published Date

16-06-2019

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Electrical Sustainable Energy

Research Group

DC systems, Energy conversion & Storage

Abstract

This paper investigates the partial discharges (PD) at artificial defects in a cross-linked polyethylene (XLPE) insulated cable joint under superimposed voltage. The experiments are conducted on a 16-meter long 150 kV commercial XLPE cable, together with a cable joint and two terminations. Defects are fabricated on purpose in the cable joint. The cable system was subjected to a 50 Hz AC voltage, being in between PD extinction and inception values, superimposed with a lightning impulse voltage. Partial discharges are measured by two HFCT sensors at the two ends of the cable joint. The measurement results show that, the impulse voltage could trigger partial discharges. The partial discharge occurrence is mainly influenced by the time period during which the applied voltage is higher than PDIV.

Files

09046529.pdf
(pdf | 1.11 Mb)
Unknown license

Download not available