Research Article
Simultaneous-Fault Diagnosis of Gas Turbine Generator Systems Using a Pairwise-Coupled Probabilistic Classifier
Table 1
Sample single-faults and possible simultaneous-faults in the gearbox of GTGS.
| Case no. | Condition | Description of fault |
| C1 | Normal | Normal |
| C2 | Single-faults | Unbalance | C3 | Looseness | C4 | Mechanical misalignment | C5 | Wear of cage and rolling elements of bearing | C6 | Wear of outer race of bearing | C7 |
Gear tooth broken | C8 | Gear crack | C9 | Chipped tooth |
| C10 |
Simultaneous-faults | Gear tooth broken and chipped tooth | C11 | Chipped tooth & wear of outer race of bearing | C12 | Gear tooth broken and wear of cage and rolling elements of bearing | C13 | Gear tooth broken and wear of cage and rolling elements of bearing & wear of outer race of bearing |
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