Proceedings of 2005 International Symposium on Electrical Insulating Materials, 2005. (ISEIM 2005). 2005
DOI: 10.1109/iseim.2005.193441 View full text |Buy / Rent full text
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Abstract: Finite element modal analysis is used to predict the frequency spectrum of switching emissions from gas insulated substation switchgear. Field results indicate that the arc can be modeled as an impulsive current source. Fields of resonant modes matching the fields emitted by the arc facilitate the excitement of these modes and shape the spectrum of the emissions. The data provided by the model can be used to identify signal sources and complement a time domain based on-line circuit breaker contact timing system Show more

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“…The electromagnetic radiation is related to the rate of change of current and the structure and connections of the radiated. For this reason PD can be detected using wideband radiometric antennas [10], [11]. The challenges of PD detection circuits are the design of proper sensors (antennas) capable of signal detection in broadband range and the signal interpretation circuits [12], [13].…”
Section: Finite Difference Time Domain Techniquementioning
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“…The electromagnetic radiation is related to the rate of change of current and the structure and connections of the radiated. For this reason PD can be detected using wideband radiometric antennas [10], [11]. The challenges of PD detection circuits are the design of proper sensors (antennas) capable of signal detection in broadband range and the signal interpretation circuits [12], [13].…”
Section: Finite Difference Time Domain Techniquementioning