Triangulation and 3D location estimation of RFI and partial discharge sources within a 400kV substation

Brian G. Stewart; Alan Nesbitt; L. Hall

doi:10.1109/EIC.2009.5166337

Triangulation and 3D location estimation of RFI and partial discharge sources within a 400kV substation

Brian G. Stewart, Alan Nesbitt, L. Hall

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The 3D location of RFI (Radio Frequency Interference) and PD (Partial Discharge) sources within a 400 kV substation are presented in this paper. The technique involves the employment of four small broadband mobile antennas attached to a fast digitizing scope. The time differences of arrival within a group of four received digitized signals are used to triangulate the 3D position of radiating RF sources. Results presented demonstrate the capability of the technique. Two specific locations at heights of around 7 m and 9 m pinpointed regions associated with the surrounding joint areas of a recently refurbished bus bar. Deformed inner cable cores were discovered at one of these locations. After remedial attention, cleaning and reconnection of the bus bar the RFI problems disappeared. Other RFI source locations were pinpointed, and surprisingly, some of these were related to nearby lighting.

Original language	English
Title of host publication	Proceedings of the IEEE Electrical Insulation Conference 2009
Publisher	IEEE
ISBN (Print)	9781424439157
DOIs	https://doi.org/10.1109/EIC.2009.5166337
Publication status	Published - 1 Jan 2009

Keywords

radio frequency interference
RFI
PD
electrical engineering

Documents and Links

10.1109/EIC.2009.5166337

http://researchonline.gcu.ac.uk/sec/259

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Stewart, B. G., Nesbitt, A., & Hall, L. (2009). Triangulation and 3D location estimation of RFI and partial discharge sources within a 400kV substation. In Proceedings of the IEEE Electrical Insulation Conference 2009 IEEE. https://doi.org/10.1109/EIC.2009.5166337

@inproceedings{8c83a89cc9a74c89a85b3ef822c02ea3,

title = "Triangulation and 3D location estimation of RFI and partial discharge sources within a 400kV substation",

abstract = "The 3D location of RFI (Radio Frequency Interference) and PD (Partial Discharge) sources within a 400 kV substation are presented in this paper. The technique involves the employment of four small broadband mobile antennas attached to a fast digitizing scope. The time differences of arrival within a group of four received digitized signals are used to triangulate the 3D position of radiating RF sources. Results presented demonstrate the capability of the technique. Two specific locations at heights of around 7 m and 9 m pinpointed regions associated with the surrounding joint areas of a recently refurbished bus bar. Deformed inner cable cores were discovered at one of these locations. After remedial attention, cleaning and reconnection of the bus bar the RFI problems disappeared. Other RFI source locations were pinpointed, and surprisingly, some of these were related to nearby lighting.",

keywords = "radio frequency interference, RFI, PD, electrical engineering",

author = "Stewart, {Brian G.} and Alan Nesbitt and L. Hall",

note = "<p>Paper presented at the IEEE Electrical Insulation Conference 2009, Montreal, Canada, 31 May - 3 June 2009. Proceedings ISBN: 9781424439157</p>",

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T1 - Triangulation and 3D location estimation of RFI and partial discharge sources within a 400kV substation

AU - Stewart, Brian G.

AU - Nesbitt, Alan

AU - Hall, L.

N1 - <p>Paper presented at the IEEE Electrical Insulation Conference 2009, Montreal, Canada, 31 May - 3 June 2009. Proceedings ISBN: 9781424439157</p>

PY - 2009/1/1

Y1 - 2009/1/1

N2 - The 3D location of RFI (Radio Frequency Interference) and PD (Partial Discharge) sources within a 400 kV substation are presented in this paper. The technique involves the employment of four small broadband mobile antennas attached to a fast digitizing scope. The time differences of arrival within a group of four received digitized signals are used to triangulate the 3D position of radiating RF sources. Results presented demonstrate the capability of the technique. Two specific locations at heights of around 7 m and 9 m pinpointed regions associated with the surrounding joint areas of a recently refurbished bus bar. Deformed inner cable cores were discovered at one of these locations. After remedial attention, cleaning and reconnection of the bus bar the RFI problems disappeared. Other RFI source locations were pinpointed, and surprisingly, some of these were related to nearby lighting.

AB - The 3D location of RFI (Radio Frequency Interference) and PD (Partial Discharge) sources within a 400 kV substation are presented in this paper. The technique involves the employment of four small broadband mobile antennas attached to a fast digitizing scope. The time differences of arrival within a group of four received digitized signals are used to triangulate the 3D position of radiating RF sources. Results presented demonstrate the capability of the technique. Two specific locations at heights of around 7 m and 9 m pinpointed regions associated with the surrounding joint areas of a recently refurbished bus bar. Deformed inner cable cores were discovered at one of these locations. After remedial attention, cleaning and reconnection of the bus bar the RFI problems disappeared. Other RFI source locations were pinpointed, and surprisingly, some of these were related to nearby lighting.

KW - radio frequency interference

KW - RFI

KW - PD

KW - electrical engineering

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