AC-Fault

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A three-phase-to-ground fault applied to a transmission line, then cleared.

A balanced three-phase source feeds a transmission line into a resistive load. At t = 1.05 s a low-impedance (0.1 Ω) three-phase-to-ground (ABCG) fault is switched in for 100 ms and then removed, so you can watch the line voltages collapse while the fault is on and recover once it clears. The two plots follow the phase quantities right through the disturbance.