Partial discharge analysis in a needle-plane gap with repetitive step voltage
2012 (English)In: 2012 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), IEEE , 2012, 92-95 p.Conference paper (Refereed)
Partial Discharge (PD) tests are carried out in a needle-plane gap where the plane is covered by an insulating material. The partial discharge activity is studied during application of a periodic negative step voltage, whose duration of the voltage period T1 and the pause time T2 between every two consecutive step voltage pulses could be varied separately to influence the decay of deposited surface charges. Compared with the PDs in the needle-plane setup without dielectric, the effect of dielectric placed on the top of ground electrode on the discharge activity is investigated. The results show for the case of the step voltage with the duration of 100 ms and the pause time of 10 s. The PD activity during the first voltage cycle is significantly different from the others. For a lower voltage, the pulse repetition in the virgin curve reaches a saturation level within the charging period; however, for the higher voltages it becomes more linear increasing.
Place, publisher, year, edition, pages
IEEE , 2012. 92-95 p.
, Conference on Electrical Insulation and Dielectric Phenomena. Annual Report, ISSN 0084-9162
Needle-plane, Partial discharge activity, Partial discharge analysis, Pulse repetition, Saturation levels, Step voltages, Voltage cycle
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-105859DOI: 10.1109/CEIDP.2012.6378730ISI: 000316899800019ScopusID: 2-s2.0-84872095186ISBN: 978-1-4673-1252-3OAI: oai:DiVA.org:kth-105859DiVA: diva2:572593
2012 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2012; Montreal, QC; Canada; 14 October 2012 through 17 October 2012
QC 201211282012-11-282012-11-282015-05-18Bibliographically approved