Cable Cross Section, Inrush Current, and Magnetic Fields

I consider you are talking about a three phase motor and you don't have any scope to remove such looping. If possible, simply interposing three phases at two three points to neutralise the crossing effect.

Dear Sir,

first of all, there is no Hall effect, which influences this effect, from my point of view.

The exlpanation of enlargerd inrush current is simpler: the current of stopped motor is more sufficient than 5-6 time of rating and may be 10-15 times more. The inrush current reachs 5-6 rating values only in the normal starting conditions. When the voltage drop occurs the starting moment drops down and start-up process becomes much longer, as a results, current rises up.

The same voltage dropn takes place if additional inductance of cable (some loops of cable leads) occurs.