Partial discharge analysis of a narrow dielectric gap with repetitive half-sine pulses
2010 (English)In: Annual Report: Conference on Electrical Insulation and Dielectric Phenomena, 2010Conference paper (Refereed)
Partial Discharge (PD) tests are carried out in a narrow dielectric gap between spherical electrodes at arbitrary voltage stimulus by a time-resolved measurement system. The usual AC voltage sinusoidal waveform application is compared with a new method based on repetitive half-sine voltage pulses, with either alternating or unipolar polarity. The half-sine pulse with duration T1 is followed by a pause period of zero voltage of duration T2 before the reversed polarity half-sine pulse. The effect of the pause period on the discharge activity is investigated. The results are shown for the case of 10 ms duration of the halfsine pulse, i.e. 50 Hz-like, but a pause between every two halfsine pulses can be varied. The PD signals are acquired with a Scope Corder that makes pulse sequential analysis possible. The differences between the two methods and the influence of a pause between two half-sine voltage periods to PD behavior is investigated.
Place, publisher, year, edition, pages
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-105857DOI: 10.1109/CEIDP.2010.5724053ScopusID: 2-s2.0-79952965107OAI: oai:DiVA.org:kth-105857DiVA: diva2:572582
2010 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2010;West Lafayette, IN;17 October 2010through20 October 2010
QC 201302042012-11-282012-11-282013-02-04Bibliographically approved