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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
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 fe
asible remote PD monitoring technique for high voltage cable systems.
1070-9878
861-869
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.
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), 861-869. (doi:10.1109/TDEI.2004.1349792).

Record type: Article

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 fe
asible 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
ORCID for J.S. Wilkinson: ORCID iD orcid.org/0000-0003-4712-1697

Catalogue record

Date deposited: 23 Jun 2005
Last modified: 18 Feb 2021 16:32

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