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Measurement and analysis of partial discharge of XLPE power cable accessories
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[ISSN:1007-449X/CN:23-1 408/TM]

Issue:
2016年06
Page:
94-101
Research Field:
Publishing date:

Info

Title:
Measurement and analysis of partial discharge of XLPE power cable accessories
Author(s):
ZHAO Xue-feng1 PU Lu1 JU Ze-li1 HUANG Guo-qiang1 L Liang1 ZHAO Wen-yan2

 ( 1. State Grid Shanxi Electric Power Research Institute,Xi’an 710054,China; 2. State Grid Jibei Tangshan Electric Power Supply Company,Tangshan 063000,China)
Keywords:
XLPE typical defect partial discharge PRPD pattern pulse waveform statistical analysis
PACS:
TM 51
DOI:
10. 15938 / j. emc. 2016. 06. 012
Abstract:
In order to study the partial discharge ( PD) characteristics of the typical defects in XLPE pow-er cable accessories,three PD models as tip defect of middle joint,void defect in main insulation and dis-location of stress cone were designed on the cable entities,and then the PD measurement and analysis sys-tem based on the PDBase was established. The PD characteristics of three typical defects were detected and compared,and the statistical features of Hn ( φ) ,Hqmax ( φ ) and H( q) were investigated. The experi-mental results indicate that it has the high stability and repeatability of the discharge on the identical de-fect model under the same condition. The discharge development process,PRPD patterns,time domain waveforms,central phase changing of PD signals and statistical features have very similar distribution characteristics and those of different defect has different ones. So it provides a test basis for the recogni-tion of PD types and a deeper study of the PD mechanism of cable accessories.

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Last Update: 2016-08-20