Partial discharge and oil quality monitoring using an RF antenna [2009 Myron Zucker prize winner]

Partial discharge (PD) is a small electrical spark that occurs within the electrical insulation of transformers, switchgears, cables, and windings in large motors and generators. The objective of this work is to design and use a multipurpose radiofrequency (RF) antenna that can detect the PD in tran...

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Bibliographic Details
Published in:IEEE industry applications magazine 2010-05, Vol.16 (3), p.57-59
Main Authors: Al Murawwi, Esam, AlMazam, Karmal, Huwair, AbdelRahim, El-Hag, Ayman, Qaddoumi, Nasser
Format: Magazinearticle
Language:English
Subjects:
Antennas and propagation
Cable insulation
Dielectrics and electrical insulation
Monitoring
Oil insulation
Partial discharges
Power transformer insulation
Radio frequency
Sparks
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Summary:Partial discharge (PD) is a small electrical spark that occurs within the electrical insulation of transformers, switchgears, cables, and windings in large motors and generators. The objective of this work is to design and use a multipurpose radiofrequency (RF) antenna that can detect the PD in transformer's oil and monitor the oil's quality. Upon the occurrence of a PD, an electromagnetic wave is generated. This wave travels in different directions and propagates through the transformer's oil. Additionally, the same antenna can be connected to a simple microwave radiometer circuit to evaluate the oil quality.
ISSN:1077-2618
1558-0598
DOI:10.1109/MIAS.2010.936131