NDLI: Application of optical fibre sensor for partial discharge detection in high-voltage power equipment

Content Provider	IEEE Xplore Digital Library
Author	Zargari, A. Blackburn, T.R.
Copyright Year	1996
Description	Author affiliation: Dept. of Electr. Power Eng., New South Wales Univ., Sydney, NSW, Australia (Zargari, A.)
Abstract	The insulation system of HV power equipment deteriorates due to partial discharges. It is thus desirable to monitor the insulation of power apparatus whilst in service. Ultrasonic signals generated by the partial discharges in high-voltage power equipment can be detected with suitable pressure transducers and related to the PD (Partial Discharge) source. Acoustooptic sensors have shown high sensitivity and good accuracy of measurement of physical parameters. Optical fibres are chemically inert and do not affect the integrity of the insulation system, hence they provide a suitable means of monitoring of the condition of the HV equipment. An optical signal is launched periodically into an all-fibre sensor system. The induced stress on the fibre core caused by the pressure wave perturbation changes the phase of the optical signal traversing the fibre. The phase shift is detected by using a reflectrometric pulsed interferometer technique with a phase modulated type sensor. The extracted PD signals show a high sensitivity.
Starting Page	541
Ending Page	544
File Size	378787
Page Count	4
File Format	PDF
ISBN	0780335805
DOI	10.1109/CEIDP.1996.564529
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-10-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical fiber sensors Partial discharges Insulation Optical interferometry Optical modulation Optical sensors Optical fiber devices Monitoring Power generation Signal generators
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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