How does the current flowing in Line 3 relate to the current in Motor Winding B?

In a three-phase motor system, the currents in the lines and motor windings are interconnected. If Line 3 carries more current than Motor Winding B, this indicates that the electrical load on Line 3 is higher, leading to greater current flow compared to what is being consumed by Motor Winding B.

One possible scenario for this condition could be related to how the phases are balanced in the system or how the load is distributed among the windings. If the motor is under load or experiencing an imbalance, it is feasible that one line may carry more current as it compensates for inadequate current in the other phases or windings.

Additionally, if the motor is not properly designed to balance the loads across the phases or if there are issues such as faults or inefficiencies within Motor Winding B, it will result in uneven current distribution. As a result, the current in Line 3 being greater than the current in Motor Winding B is a possible condition in three-phase systems, especially under unbalanced load conditions.