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Partial Discharge Pattern Characteristic of HV Cable Joints with Typical Artificial Defect

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7 Author(s)
Yun Jiang ; Shanghai Municipal Electr. Power Co., Shanghai Cable Transm. & Distrib. Co., Shanghai, China ; Hong Min ; Junhua Luo ; Yu Li
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Insulation failure of XLPE cable system, particularly in joints and terminations, mostly attributes to local defects resulted from inadequate manufacturing or poor installation workmanship. Since it is well-acknowledged that partial discharge (PD) has a relationship with the discharge source (fault or defect), PD detection and pattern recognition have been widely accepted as a means to provide information on both the type and severity of defects or potential failures, which is further expected to give advice on repair or replacement of cable accessories. This paper presents a laboratory experiment on HOkV XLPE cable joints with artificial typical defects and their partial discharge pattern characteristic. PD patterns and statistical operators of these defects shows dissimilarity, which can be utilized as samples for further on-site PD pattern recognition.

Published in:

Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific

Date of Conference:

28-31 March 2010

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