TITLE:
Propagation Characteristics of Partial Discharge Pulses in the Cable
AUTHORS:
Jianhua Lin, Junfeng Gui, Shengyou Gao, Yubin Wang, Jianhua Huang, Jinjing Yuan, Wen He
KEYWORDS:
Partial Discharge, Cable, Waveform, Propagation, Recognition
JOURNAL NAME:
Journal of Power and Energy Engineering,
Vol.2 No.9,
September
16,
2014
ABSTRACT:
In order to determine the type and location
of partial discharge in cable, the effect of partial discharge (PD) pulse propagation
in the cable is studied. Firstly, pulses are injected to cables of different
lengths so that input and output signal can be measured at both ends of each
cable. Then the transfer function of pulse propagation path can be defined. Secondly,
high-voltage test is done in the cable joint with man-made defects, and typical
PD waveforms are gotten. Seven parameters of waveform characteristics are
calculated, including edge times, waveform shape and statistical characteristics.
They are used to distinguish different types of PD or distances of the pulse propagation.
Thus the efficiency of PD recognition in cable can be improved.