A Method for Identification of Transformer Inrush Current Based on Box Dimension

Table 1

Box dimensions of inner fault current (faults occur in normal operation).

Fault type
Single-phase ground	1.4178	1.3780	1.4177
Two-phase short circuit	1.4174	1.4174	1.4174
Two-phase ground	1.3839	1.4174	1.3929
Three-phase short circuit	1.3804	1.4174	1.3863
Three-phase ground	1.3844	1.4174	1.3903
Turn-to-turn fault (10%)	1.4063	1.4176	1.4153
Turn-to-turn fault (20%)	1.3822	1.3955	1.4088
Turn-to-turn fault (50%)	1.3799	1.3895	1.4131