2017
DOI: 10.3390/en10111759
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Partial Discharge of Needle-Plane Defect in Oil-Paper Insulation under AC and DC Combined Voltages: Developing Processes and Characteristics

Abstract: Partial discharge (PD) behaviors of oil-paper insulation is distinctive in AC and DC combined electric fields in converter transformers from PD behaviors in pure AC or DC electric fields. The present study focuses on the PD developing processes and characteristics of oil-paper insulation systems with needle-plane defects under different AC/DC proportions. The degradation of oil-paper insulation can be accelerated by PD pulses incurred by needle-plane defects. AC-DC combined voltages are applied to the needle-p… Show more

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Cited by 3 publications
(1 citation statement)
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“…Oil-paper insulation is the main form of internal insulation in power transformers (Harbaji et al 2015;Xia and Wu 2016;Chen et al 2017;Hao et al 2018). There is much research available on the aging of oil-paper insulation and the factors that affect PD (Zhou et al 2015;Wei et al 2016a;Xie et al 2016a;Sun et al 2017;Munajad et al 2018). Mitchinson et al (2008) designed a model for point discharge and investigated the effects of voltage and time on oil-paper insulation.…”
Section: Introductionmentioning
confidence: 99%
“…Oil-paper insulation is the main form of internal insulation in power transformers (Harbaji et al 2015;Xia and Wu 2016;Chen et al 2017;Hao et al 2018). There is much research available on the aging of oil-paper insulation and the factors that affect PD (Zhou et al 2015;Wei et al 2016a;Xie et al 2016a;Sun et al 2017;Munajad et al 2018). Mitchinson et al (2008) designed a model for point discharge and investigated the effects of voltage and time on oil-paper insulation.…”
Section: Introductionmentioning
confidence: 99%