Mathematical Problems in Engineering / 2016 / Article / Tab 13 / Research Article
Calculation of a Health Index of Oil-Paper Transformers Insulation with Binary Logistic Regression Number (ppm) (mgKOH/g) (kV) (%) (ppm) (mg/L)1 21.7 0.024 32.5 0.075 483 0.86 2 26.9 0.098 40.5 0.894 254 0.65 3 14.5 0.033 58 0.14 78 0.26 4 21.2 0.226 48.7 0.424 215 5.53 5 10 0.01 75 0.111 126 0.06 6 15.5 0.075 71 0.143 38 0.53 7 16.8 0.167 70.1 0.255 149 0.78 8 15 0.092 67.8 0.211 28 0.69 9 17 0.035 62.7 0.113 9 0.21 10 30 0.088 37.6 0.353 197 0.31 11 16.2 0.181 25.5 0.201 35 8.76 12 15 0.155 37.5 0.182 53 7.29 13 16.8 0.115 25.6 0.174 78 9.6 14 15 0.21 57.2 0.22 53 6.69 15 27.6 0.089 30.4 0.128 336 5.12 16 23.5 0.106 45.8 0.207 30 0.24 17 24.8 0.012 29.9 0.068 504 1.68 18 23.6 0.07 39.2 0.203 22 0.5 19 30.5 0.073 28.7 67 30 15.7 20 18.4 0.063 64.5 0.243 69 0.15 21 21.1 0.019 28.4 0.025 144 0.02 22 8.1 0.01 66.9 0.042 71 0.05 23 19.6 0.216 41.1 0.264 48 7.54 24 6 0.01 67.6 0.126 427 0.08 25 18.4 0.152 37.2 0.299 81 1.14 26 11.1 0.032 67.2 0.089 119 0.04 27 21.5 0.147 60.8 0.938 168 0.92 28 7.5 0.16 70.1 0.448 10 0.06 29 13 0.091 51.6 0.369 8 0.32 30 35.7 0.229 41.4 0.639 24 1.07
, , , , , and represent water content in oil, total acidity of oil, oil breakdown voltage, dissipation factor, DCG, and 2-Furfuraldehyde content, respectively.