Fault type Fault location Transition resistance/Ω DallP DallN D1 Identification result
f1 10% distance of the total line from rectifier side protection installation 250 0.3732 0.9178 0.3732 Internal fault
500 0.3882 0.9936 0.3882
90% distance of the total line from rectifier side protection installation 250 0.3729 0.9273 0.3729
500 0.3661 1.0458 0.3661
f2 10% distance of the total line from rectifier side protection installation 250 0.9265 0.3825 0.3825 Internal fault
500 0.9899 0.4368 0.4368
90% distance of the total line from rectifier side protection installation 250 0.9219 0.3476 0.3476
500 0.9974 0.3711 0.3711
f3 10% distance of the total line from rectifier side protection installation 250 0.4137 0.4138 0.4137 Internal fault
500 0.4493 0.4496 0.4493
90% distance of the total line from rectifier side protection installation 250 0.3825 0.3826 0.3825
500 0.4165 0.4157 0.4157
f4 10% distance of the total line from rectifier side protection installation 250 0.4064 0.4063 0.4063 Internal fault
500 0.4500 0.4500 0.4500
90% distance of the total line from rectifier side protection installation 250 0.3723 0.3724 0.3723
500 0.4070 0.4071 0.4070