Partial discharge on-line monitoring for HV cable systems using electro-optic modulators
Partial discharge on-line monitoring for HV cable systems using electro-optic modulators
A technique for the remote inspection and monitoring of partial discharge (PD) activity using an optical network is described. The network uses a LiNbO3 modulator to modulate the intensity of the transmitted laser light approximately proportional to the voltage applied across the modulator. The laser light is transmitted along an optical fibre and measured remotely by a high-speed optical receiver. A capacitive coupler has been used to detect partial discharge activity and act as the modulator’s input voltage source. The electro-optic modulator is passive and does not require a power supply at the site of the PD detection sensor. The system has the additional advantages of being immune to electromagnetic interference, having very little signal transmission attenuation, with good sensitivity, compact size, as well as being convenient to use and safe. Both simulation experiments and practical PD tests on two cable systems have indicated that the optical system provides a feasible remote PD monitoring technique for high voltage cable systems.
861-869
Tian, Y.
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Lewin, P.L.
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Pommerenke, D.
18cecacb-88d9-4f0e-9971-df203c21b96c
Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Sutton, S.J.
571c7136-1eb6-44e1-8979-ca0829469a6b
2004
Tian, Y.
8d1f8d1c-71f3-4f17-b254-d925b9aa6061
Lewin, P.L.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Pommerenke, D.
18cecacb-88d9-4f0e-9971-df203c21b96c
Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Sutton, S.J.
571c7136-1eb6-44e1-8979-ca0829469a6b
Tian, Y., Lewin, P.L., Pommerenke, D., Wilkinson, J.S. and Sutton, S.J.
(2004)
Partial discharge on-line monitoring for HV cable systems using electro-optic modulators.
IEEE Transactions on Dielectrics & Electrical Insulation, 11 (5), .
(doi:10.1109/TDEI.2004.1349792).
Abstract
A technique for the remote inspection and monitoring of partial discharge (PD) activity using an optical network is described. The network uses a LiNbO3 modulator to modulate the intensity of the transmitted laser light approximately proportional to the voltage applied across the modulator. The laser light is transmitted along an optical fibre and measured remotely by a high-speed optical receiver. A capacitive coupler has been used to detect partial discharge activity and act as the modulator’s input voltage source. The electro-optic modulator is passive and does not require a power supply at the site of the PD detection sensor. The system has the additional advantages of being immune to electromagnetic interference, having very little signal transmission attenuation, with good sensitivity, compact size, as well as being convenient to use and safe. Both simulation experiments and practical PD tests on two cable systems have indicated that the optical system provides a feasible remote PD monitoring technique for high voltage cable systems.
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Published date: 2004
Organisations:
Optoelectronics Research Centre, EEE
Identifiers
Local EPrints ID: 16084
URI: http://eprints.soton.ac.uk/id/eprint/16084
ISSN: 1070-9878
PURE UUID: 4307ed58-e7ce-42fc-bbf8-53e447469ca4
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Date deposited: 23 Jun 2005
Last modified: 16 Mar 2024 02:41
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Contributors
Author:
Y. Tian
Author:
P.L. Lewin
Author:
D. Pommerenke
Author:
S.J. Sutton
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