For a LG fault in the system, components of current flows from transformers secondary to fault is given as IG1 = (0.8 -j0.4), IG2 = -j1, IG0 = 0.
current supplied by the motor to fault is given by IM1 = (-0.8 -ja), IM2 = -jb, IM0 = -j3. Then the value of a + b is _____
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