Research Article
Temperature Effect on Electrical Treeing and Partial Discharge Characteristics of Silicone Rubber-Based Nanocomposites
Table 1
Summary of partial discharge statistical parameters.
| Type of sample | PD characteristics | 20°C | 40°C | 60°C | Min | Max | Ave. | Min | Max | Ave. | Min | Max | Ave. |
| Neat SiR | Discharge magnitude (pC) | 83 | 218 | 160 | 57 | 387 | 280 | 70 | 610 | 332 | Number of PDs (s−1) | 687 | 1244 | 952 | 117 | 7571 | 199 | 65 | 649 | 197 | Phase of occurrence of positive PDs (°) | 34 | 41 | 37 | 36 | 60 | 44 | 44 | 93 | 55 | Phase of occurrence of negative PDs (°) | 215 | 220 | 218 | 218 | 244 | 226 | 223 | 247 | 239 | Dissipated power (mW) | 0.87 | 1.40 | 1.24 | 0.35 | 3.4 | 0.54 | 0.05 | 0.997 | 0.668 |
| SiR/1 wt % oMMT | Discharge magnitude (pC) | 31 | 641 | 450 | 5 | 492 | 294 | 137 | 478 | 257 | Number of PDs (s−1) | 249 | 1831 | 495 | 1 | 581 | 338 | 416 | 831 | 580 | Phase of occurrence of positive PDs (°) | 33 | 86 | 44 | 36 | 61 | 47 | 34 | 44 | 38 | Phase of occurrence of negative PDs (°) | 209 | 275 | 223 | 209 | 274 | 217 | 212 | 225 | 217 | Dissipated power (mW) | 0.22 | 3.50 | 1.91 | 0.061 | 1.5 | 0.94 | 0.75 | 2.00 | 1.395 |
| SiR/3 wt % oMMT | Discharge magnitude (pC) | 2 | 45 | 22 | 2 | 6 | 4 | 2 | 11 | 4 | Number of PDs (s−1) | 1 | 643 | 181 | 1 | 64 | 27 | 1 | 25 | 4 | Phase of occurrence of positive PDs (°) | 17 | 142 | 80 | 5 | 94 | 46 | 52 | 133 | 75 | Phase of occurrence of negative PDs (°) | 154 | 306 | 280 | 177 | 272 | 226 | 164 | 265 | 222 | Dissipated power (µW) | 0.34 | 163 | 35.7 | 0.002 | 3.7 | 1.13 | 0.03 | 0.98 | 0.15 |
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