Table 1.
Feature quantity and number.
Fig 1.
Cumulative contribution rate of the principal components.
Fig 2.
Scatter diagram of different principal elements.
Table 2.
Key parameters of LightGBM.
Fig 3.
PCA and SSA-LightGBM based transformer fault diagnosis flow chart.
Table 3.
Sample diagnostic results and sample distribution.
Table 4.
Diagnostic accuracy of different models.
Table 5.
Multi-model fault diagnosis results.
Table 6.
Average accuracy of different feature quantities.