2004
DOI: 10.1088/0022-3727/37/13/013
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Abstract: Experimental ac partial discharge (PD) patterns are presented for a disc-void (area greater than length) with metal surfaces, one metal and one insulating surface, and with both surfaces insulating. These patterns indicate that the portion of the surface over which the charge is deposited (discharge area) plays an important role in producing the fluctuations in discharge magnitude commonly observed for such voids. A simulation model for PD patterns in voids is presented, which expressly includes the effects of… Show more

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Cited by 79 publications
(37 citation statements)
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“…Documentation [8][9][10] studied the single waveform of PD and discharging patterns in the cavity, brought forward the evolution law of rise/fall time of discharging pulse during the deterioration process, and divided the discharge process into five stages. Documentation [11][12][13][14] simulated the variation of surface conductivity, studied the changing rules of discharging waveforms and discharging patterns when the conductivity varied, and proposed the relationship between discharging area and discharging pattern. Documentation [15][16][17][18] simulated the discharging patterns and calculated the parameters of material using mathematical methods such as Monte Carlo.…”
Section: Introductionmentioning
confidence: 99%
“…Documentation [8][9][10] studied the single waveform of PD and discharging patterns in the cavity, brought forward the evolution law of rise/fall time of discharging pulse during the deterioration process, and divided the discharge process into five stages. Documentation [11][12][13][14] simulated the variation of surface conductivity, studied the changing rules of discharging waveforms and discharging patterns when the conductivity varied, and proposed the relationship between discharging area and discharging pattern. Documentation [15][16][17][18] simulated the discharging patterns and calculated the parameters of material using mathematical methods such as Monte Carlo.…”
Section: Introductionmentioning
confidence: 99%
“…The function on the local electric field inside the gas inclusion that describes the threshold character of partial discharges has the form [5] ) (E r…”
Section: Partial Discharges In a Chain Of Gas Inclusions Spaced In Comentioning
confidence: 99%
“…However, these studies did not take into account the spatio-temporal evolution of the electric field in the gap. The works [5][6][7][8] are devoted to the computer simulations of partial discharges in liquid and solid dielectrics with calculations of electric field distribution at every time step.…”
Section: Introductionmentioning
confidence: 99%
“…7 [20]. Without the inclusion of any stochastic factors, this statement holds true for any type of void, only excluding void with metal wall surfaces [21]. U and the starting point of the electron avalanche due to the delay in getting free electrons is called Statistical Time Lag, stat t .…”
Section: Simulation Modelmentioning
confidence: 99%