Hi all, I am trying to develop a motor protection scheme for the following scenario. There are two 3.3kV 250kW delta connected motors close coupled to a gearbox driving a crusher. Both have seperate DOL starters and protection systems. What happens to the motor current in a motor that loses a phase (1) via a broken winding connection and (2) via a broken supply connection. I know what happens for a single motor in both of these situations but am not sure in a situation where the rotor of the motor is being driven by the other motor via the close coupled gearbox.