Power Transformer Partial Discharge Fault Diagnosis Based on Multidimensional Feature Region

<div>The in situ condition. Note: power transformer (SSP-360 MVA/330 kV) and the UHF sensor parameters: detection sensitivity (−80 dBm~−35 dBm), working voltage (8 V~15 V), working current (120 mA), and output voltage (100 mV~3 V).</div>

Mathematical Problems in Engineering

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Figure 9

Figure 9: Power Transformer Partial Discharge Fault Diagnosis Based on Multidimensional Feature Region 