From: A new protection scheme for PV-wind based DC-ring microgrid by using modified multifractal detrended fluctuation analysis
Fault type
Class name
Pole–Pole (P-P)
F1
Positive Pole-Ground (P-P-G)
F2
Negative Pole-ground (N-P-G)
F3
Series arc
F4
Shunt arc
F5