Low power radiometric partial discharge sensor using composite transistor-reset integrator
Upton, David W. and Saeed, Bakhtiar I. and Mather, Peter J. and Sibley, Martin J. N. and Lazaridis, Pavlos I. and Mistry, Keyur K. and Glover, Ian A. and Filho, Flávlo T. and Tachtatzis, Christos and Atkinson, Robert C. and Judd, Martin D. (2018) Low power radiometric partial discharge sensor using composite transistor-reset integrator. IEEE Transactions on Dielectrics and Electrical Insulation, 25 (3). pp. 984-992. ISSN 1070-9878
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Abstract
The measurement of partial discharge provides a means of monitoring insulation health in high-voltage equipment. Traditional partial discharge measurements require separate installation for each item of plant to physically connect sensors with specific items. Wireless measurement methods provide an attractive and scalable alternative. Existing wireless monitoring technologies which use time-difference-of-arrival of a partial discharge signal at multiple, spatially separated, sensors place high demands on power consumption and cost due to a requirement for rapid sampling. A recently proposed partial discharge monitoring system using a wireless sensor network and measuring received signal strength only, has potential cost and scalability advantages. An incoherent wireless sensor incorporating a transistor-reset integrator has been developed that reduces the measurement bandwidth of the PD events and alleviates the need for high-speed sampling. It is based on composite amplifier techniques to reduce the power requirements by a factor of approximately four without compromising precision. The accuracy of the proposed sensor is compared to that obtained using a high-speed digital sampling oscilloscope. Received energies were measured over a 10 m distance in 1 m increments and produced an error within 1 dB beyond 4 m and 3.2 dB at shorter distances, resulting in a measurement accuracy within 1 m.
Creators(s): |
Upton, David W., Saeed, Bakhtiar I., Mather, Peter J., Sibley, Martin J. N., Lazaridis, Pavlos I., Mistry, Keyur K., Glover, Ian A., Filho, Flávlo T., Tachtatzis, Christos ![]() ![]() | Item type: | Article |
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ID code: | 63240 |
Keywords: | analog processing circuits, partial discharge measurement, power system reliability, UHF measurements, wireless sensor networks, Electrical engineering. Electronics Nuclear engineering, Electrical and Electronic Engineering |
Subjects: | Technology > Electrical engineering. Electronics Nuclear engineering |
Department: | Faculty of Engineering > Electronic and Electrical Engineering Strategic Research Themes > Measurement Science and Enabling Technologies |
Depositing user: | Pure Administrator |
Date deposited: | 12 Feb 2018 14:57 |
Last modified: | 14 Jan 2021 02:21 |
Related URLs: | |
URI: | https://strathprints.strath.ac.uk/id/eprint/63240 |
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