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The Tony Davies High Voltage Laboratory

Seminars

Speaker(s): Dr. Jose Lopez-Roldan
Organiser: Dr Ian L Hosier
Time: 14/01/2014 14:00-15:00
Location: B16/2025

Abstract

Radio Frequency (RF) signals have been used over the last twenty years for the detection of partial discharges (PD) in high voltage (HV) equipment. The technique has been applied initially to Gas Insulated Switchgear and then progressively to other types of plant such as transformers. Recently, RF signals have been used to complete PD surveys in outdoor HV switchyards. This paper describes the development and application of this technique in high voltage transmission substations. The detection of RF signals emitted by electrical discharges has also been used for the monitoring of circuit breakers during switching. A non-intrusive measurement technique has been developed to monitor the performance of circuit breakers during switching of reactive plant without the need for an outage from normal service. The principles of this measuring technique are discussed and an example of its application in shunt reactor and capacitor switching is presented.

Speaker Biography

Dr. Jose Lopez-Roldan

Jose Lopez-Roldan received the M.Sc. and Ph.D. degrees in electrical engineering from the University of Barcelona in 1993 and 1997 respectively. During his Ph.D. studies, he was a visiting-researcher at the R&D centers of Ontario-Hydro (Toronto), Schneider-Electric (Grenoble) and EDF (Paris) . He worked at VA TECH-Reyrolle in the UK from 1996 to 2000 as a senior engineer engaged in the development of Gas Insulated Switchgear. He joined Pauwels in Belgium in 2000 as R&D Project Manager in the Transformer Division and from 2002 to 2006 was the engineering manager of the Substations Division. Since 2006, he has been working as Principal Consultant in HV Switchgear for Powerlink Queensland in Australia. From 2009 to 2012, he also worked with Zenergy Power in Australia in the development of High Voltage Superconducting Fault Current limiters. Jose has co-authored 50 papers on HV switchgear, substations and electrical insulation. He is adjunct professor at the Queensland University of Technology. He is a Fellow of the Institute of Engineers of Australia, senior member of the IEEE and member of several international working groups of CIGRE.

Speaker(s): Dr. Jose Lopez-Roldan
Organiser: Dr Ian L Hosier
Time: 14/01/2014 14:00-15:00
Location: B16/2025

Abstract

Radio Frequency (RF) signals have been used over the last twenty years for the detection of partial discharges (PD) in high voltage (HV) equipment. The technique has been applied initially to Gas Insulated Switchgear and then progressively to other types of plant such as transformers. Recently, RF signals have been used to complete PD surveys in outdoor HV switchyards. This paper describes the development and application of this technique in high voltage transmission substations. The detection of RF signals emitted by electrical discharges has also been used for the monitoring of circuit breakers during switching. A non-intrusive measurement technique has been developed to monitor the performance of circuit breakers during switching of reactive plant without the need for an outage from normal service. The principles of this measuring technique are discussed and an example of its application in shunt reactor and capacitor switching is presented.

Speaker Biography

Dr. Jose Lopez-Roldan

Jose Lopez-Roldan received the M.Sc. and Ph.D. degrees in electrical engineering from the University of Barcelona in 1993 and 1997 respectively. During his Ph.D. studies, he was a visiting-researcher at the R&D centers of Ontario-Hydro (Toronto), Schneider-Electric (Grenoble) and EDF (Paris) . He worked at VA TECH-Reyrolle in the UK from 1996 to 2000 as a senior engineer engaged in the development of Gas Insulated Switchgear. He joined Pauwels in Belgium in 2000 as R&D Project Manager in the Transformer Division and from 2002 to 2006 was the engineering manager of the Substations Division. Since 2006, he has been working as Principal Consultant in HV Switchgear for Powerlink Queensland in Australia. From 2009 to 2012, he also worked with Zenergy Power in Australia in the development of High Voltage Superconducting Fault Current limiters. Jose has co-authored 50 papers on HV switchgear, substations and electrical insulation. He is adjunct professor at the Queensland University of Technology. He is a Fellow of the Institute of Engineers of Australia, senior member of the IEEE and member of several international working groups of CIGRE.

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