Partial discharge detection for condition monitoring of an 11-kV XLPE cable – Part 1
Date
2009-06-20Author
Nor Akmal, Mohd Jamail
Zainal Alam, Haron
Asmarashid, Poniran
Qamarul Ezani, Kamarudin
Nor Anija, Jamaludin
Metadata
Show full item recordAbstract
High voltage insulation breakdown
has been the main causes of high voltage system
breakdown. It is found that this phenomenon
occurs due to the existence of partial discharge
within voids found in the insulation of XLPE
cables, which is produced accidentally during the
extrusion process of the cables. The effect of
partial discharge would lead to serious breakdown
of power cable systems and electrical apparatus
failures. Many appropriate techniques can be used
to evaluate the condition of XLPE cables. One of
the techniques is partial discharge testing. This
study focuses on 11 kV XLPE cables and the
partial discharge testing is conducted using partial
discharge detector equipment. The analysis of data
shows that the partial discharge test can be used to
evaluate the performance and behaviour of the
XLPE cable. The finding shows, if the partial
discharge value for the cable is more than 10 pC,
the cable is considered failed and it is not safe to
be used.
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