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Investigation on impact of magnetic field on the corona discharge activity in Punga oil using fluorescent fiber and UHF sensor techniques

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dc.contributor.author Murugesan, Srinivasan
dc.contributor.author Amalanathan, Arputhasamy Joseph
dc.contributor.author Sarathi, Ramanujam
dc.contributor.author Srinivasan, Balaji
dc.contributor.author Samikannu, Ravi
dc.date.accessioned 2022-10-20T08:18:55Z
dc.date.available 2022-10-20T08:18:55Z
dc.date.issued 2021-09-16
dc.identifier.citation Murugesan, S. et al, (2021) Investigation on impact of magnetic field on the corona discharge activity in Punga oil using fluorescent fiber and UHF sensor techniques. IEEE Access, 9, 129218 - 129228. doi: 10.1109/ACCESS.2021.3113332. en_US
dc.identifier.issn 2169-3536
dc.identifier.uri http://repository.biust.ac.bw/handle/123456789/492
dc.description.abstract This paper reports the experimental investigation of the corona discharge activity of punga oil under the influence of a local magnetic field and different voltage profiles (AC and DC voltages) using fluorescent fiber sensor as well as UHF sensor technique. The corona inception voltage (CIV) of punga oil is higher under negative DC voltage followed by positive DC and AC voltage, with a marginal reduction in its CIV magnitude observed on the impact of external magnetic field. The dominant frequency of the UHF signal obtained under AC voltage shifted towards lower frequency (0.6 GHz) with the influence of magnetic flux density to about 85 mT. The rise time, pulse width and energy content of the fluorescent signal formed due to corona activity under AC voltage is found to vary under high magnetic fields confirming the inception results. The fluorescent signals formed due to corona discharge under both AC and DC voltages have its dominant frequency at 1 MHz with no shift observed in the presence of magnetic field. Also, there is no variation in the phase resolved partial discharge (PRPD) pattern observed due to corona discharge (with and without magnetic field) signal using both UHF sensor and the fluorescent sensor. The fluorescent fiber-based technique provides a better accuracy on detecting the corona discharges in punga oil at an early stage compared to conventional UHF sensor. The breakdown voltage of punga oil under different voltage profiles with and without the effect of magnetic field follows normal distribution. The dielectric dissipation factor and electrostatic charging tendency (ECT) of punga oil is observed to be higher than the limit set for insulating fluids towards power transformer operation. en_US
dc.description.sponsorship This work was supported in part by the Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai, through the Science and Engineering Research Board (SERB) Teachers Associateship for Research Excellence Scheme (Grant Number: TAR/2020/000149) en_US
dc.language.iso en en_US
dc.publisher Institute of Electrical and Electronics Engineers (IEEE) en_US
dc.subject Corona discharge en_US
dc.subject Magnetic field en_US
dc.subject Fluorescent fiber en_US
dc.subject UHF sensor en_US
dc.subject Punga oil en_US
dc.title Investigation on impact of magnetic field on the corona discharge activity in Punga oil using fluorescent fiber and UHF sensor techniques en_US
dc.description.level phd en_US
dc.description.accessibility unrestricted en_US
dc.description.department cte en_US


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