Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/29583
Title: Development of a fibre-optic sensor for partial discharges in oil-filled power transformers
Authors: MacAlpine, M
Zhao, Z
Demokan, MS
Keywords: Acoustic sensors
Fibre-optic sensors
Partial discharges
Power transformers
Issue Date: 2002
Publisher: Elsevier
Source: Electric power systems research, 2002, v. 63, no. 1, p. 27-36 How to cite?
Journal: Electric power systems research 
Abstract: Determination of partial discharge locations in large oil-filled power transformers is unreliable and difficult using external acoustic sensors, and internal sensors would need to be non-metallic. Thus the use of a fibre-optic coil as an acoustic sensor would allow the detection and location of partial discharges with potentially a much greater sensitivity. This paper describes the design of such a sensor and its signal processing requirements, its construction and its initial testing. The sensor was found to be able to detect 1-Pa acoustic pressure waves under optimum conditions; and to detect partial discharges in small artificial voids in an oil-bath.
URI: http://hdl.handle.net/10397/29583
ISSN: 0378-7796
EISSN: 1873-2046
DOI: 10.1016/S0378-7796(02)00091-3
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