Research Article
Multiparameter-Based Fuzzy Logic Health Index Assessment for Oil-Immersed Power Transformers
Table 6
Corresponding scores obtained as per the values of the test data and HI results.
| Tx. no | H2 | CH4 | C2H2 | C2H6 | C2H4 | CO2 | CO | Moisture | Acidity | BDV | DDF | IFT | Colour | HST (°C) | Load pu | DP | DGAF | OQF | FF | Health index |
| Tx1 | 3.06 | 4.1 | 9.02 | 2.15 | 1.45 | 5.63 | 5 | 6 | 3.5 | 2.4 | 2.75 | 2.5 | 2.5 | 60 | 0.58 | 643.4 | 30.41 | 19.65 | 2.92 | 0.278 | Good | Tx2 | 4.61 | 2.48 | 3.39 | 9.7 | 3.32 | 2.01 | 1.35 | 6.5 | 5.75 | 4 | 3.53 | 4.64 | 5 | 61 | 0.6 | 443.5 | 26.86 | 29.42 | 5.1 | 0.657 | Moderate | Tx3 | 0.81 | 0.95 | 5.89 | 0.98 | 1.07 | 4.48 | 4.98 | 3.25 | 2.9 | 1.95 | 2.96 | 3.57 | 5 | 49 | 0.57 | 725.1 | 19.16 | 19.63 | 3.58 | 0.28 | Good | Tx4 | 1.85 | 4.53 | 5 | 8.23 | 6.79 | 12.83 | 31.78 | 9 | 7 | 5 | 3.54 | 6.5 | 7.5 | 78 | 0.61 | 172.7 | 71.01 | 38.54 | 5.97 | 0.992 | Worst | Tx5 | 1.78 | 1.35 | 3.48 | 6.33 | 3.93 | 5.24 | 4.15 | 4.5 | 6.25 | 5.5 | 3.03 | 5 | 7.5 | 58 | 0.44 | 524.8 | 26.26 | 31.78 | 2.53 | 0.498 | Moderate | Tx6 | 2.53 | 2.57 | 0 | 2.12 | 3.37 | 6.27 | 5.68 | 8 | 4.5 | 3 | 3.43 | 4.29 | 2.5 | 66 | 0.65 | 786.3 | 22.54 | 25.72 | 2.5 | 0.275 | Good | Tx7 | 5.63 | 3.53 | 14.38 | 9.15 | 6.99 | 2.49 | 9.08 | 6.6 | 8.78 | 2.42 | 4.74 | 3.93 | 12.5 | 75 | 0.72 | 109.9 | 51.25 | 38.97 | 6.32 | 0.944 | Bad | Tx8 | 6.81 | 4.96 | 6.7 | 16.15 | 12.38 | 8.49 | 8.15 | 11.5 | 7.25 | 6.25 | 5.47 | 4.29 | 15 | 66 | 0.48 | 262.5 | 63.64 | 49.76 | 5.81 | 0.992 | Worst | Tx9 | 3.12 | 6.45 | 4.5 | 10.6 | 36.2 | 7.82 | 4.78 | 1.5 | 4 | 2.75 | 2.5 | 1.88 | 7.5 | 77 | 0.75 | 494.8 | 73.47 | 20.13 | 4.53 | 0.528 | Moderate | Tx10 | 2.76 | 2.21 | 5.18 | 14.9 | 40.43 | 2.35 | 2.14 | 16 | 8 | 3.5 | 3.26 | 6 | 12.5 | 64 | 0.45 | 248.7 | 69.97 | 49.26 | 5.97 | 0.991 | Worst | Tx11 | 2.71 | 0.17 | 5.09 | 7.55 | 0.5 | 2.32 | 2.12 | 1 | 5.5 | 1.8 | 5.33 | 3.58 | 5 | 68 | 0.5 | 665.7 | 20.46 | 22.21 | 2.83 | 0.248 | Good | Tx12 | 4.91 | 4.71 | 18.93 | 4.41 | 5.18 | 1.14 | 1.16 | 1.83 | 2.5 | 1.5 | 2.58 | 1.5 | 1.67 | 81 | 0.82 | 725.2 | 40.44 | 11.58 | 2.67 | 0.275 | Good | Tx13 | 5.44 | 6.34 | 2.5 | 0.23 | 0.9 | 1.88 | 1.73 | 1.5 | 2 | 1.45 | 1.7 | 0.63 | 0 | 56 | 0.55 | 992.8 | 19.02 | 7.28 | 0.75 | 0.12 | Excellent | Tx14 | 2.89 | 6.08 | 3.84 | 6.32 | 3.93 | 3.91 | 2.54 | 1 | 1.5 | 1.7 | 3.17 | 1.13 | 1.67 | 53 | 0.6 | 725.1 | 29.51 | 10.17 | 2.25 | 0.121 | Excellent | Tx15 | 3.91 | 5.51 | 20.71 | 1.19 | 3.06 | 7.24 | 4.89 | 2 | 2.5 | 1.75 | 3.87 | 3.21 | 5 | 50 | 0.66 | 638.3 | 46.51 | 18.33 | 3.09 | 0.525 | Moderate | Tx16 | 0.38 | 0.17 | 0 | 0.35 | 0.25 | 7.97 | 5.72 | 1.67 | 1.5 | 2.25 | 2.81 | 1 | 1.67 | 61 | 0.44 | 756.2 | 14.84 | 10.9 | 2.5 | 0.12 | Excellent | Tx17 | 6.08 | 0.08 | 2.5 | 0.15 | 0.5 | 7.08 | 4.55 | 1.67 | 4.5 | 1.9 | 6.17 | 2.86 | 5 | 53 | 0.5 | 594.4 | 20.94 | 22.1 | 4.53 | 0.348 | Good | Tx18 | 3.92 | 6.16 | 9.29 | 3.01 | 3.06 | 8.89 | 8.55 | 11 | 8.75 | 2.25 | 3.93 | 3.93 | 12.5 | 77 | 0.62 | 217.4 | 42.88 | 42.36 | 6.13 | 0.991 | Worst | Tx19 | 1.88 | 0.92 | 0 | 5.26 | 0.65 | 8.23 | 1.86 | 15 | 4.6 | 7.25 | 4.8 | 5.5 | 12.5 | 61 | 0.55 | 325 | 18.8 | 49.65 | 5.31 | 0.931 | Bad | Tx20 | 2.84 | 1.65 | 6.25 | 2.15 | 1.45 | 0.71 | 1.38 | 5.6 | 11.23 | 6.63 | 3.48 | 6.5 | 15 | 50 | 0.5 | 109.9 | 16.43 | 48.44 | 7.2 | 0.992 | Worst |
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