Figure 11: Equivalent circuit diagram of the proposed fuse system and considered faults inside and between two “isolated drivetrains” (a) and (b), where GND is the ground (earth), K is the kite’s frame, I1p# and I1n# are the positive and negative current sources of the power electronic converter(s) on ground closest to the tether, I2# is the current source of the power converter onboard the kite closest to the tether, C# is a (filter) capacitor, R# is a (parasitic) resistance, F# is a fuse, D# is a diode, U# is a UPS voltage source (drawn as battery), short circuit faults are enumerated with S#, and open circuit faults are enumerated with O#.