Fig. 2

Recurrence Plots (a) Normal Operation (b) Voltage Sag (c) Voltage Swell (d) Harmonics (e) Oscillatory Transients (f) Spike (g) Notching (h) Flicker (i) Gap (j) Interruption.

Recurrence Plots (a) Normal Operation (b) Voltage Sag (c) Voltage Swell (d) Harmonics (e) Oscillatory Transients (f) Spike (g) Notching (h) Flicker (i) Gap (j) Interruption.