Many legacy motors synchronize using reluctance which means the excitation cabinet applies excitation once the motor has nearly-reached synchronous speed. These diode wheels are difficult to test and maintain, and spares may be costly and include long lead-times.

The switch console on the driver-side door allows control of multiple functions, including up and down control for all four windows, side mirror control, and the power door lock

Master Controller is manually operated equipment that comprises the control elements required for driving and braking, as well as for controlling the auxiliary function of traction rail vehicles from Driver's desk.

The centering device refers primarily to the element at the head of the pusher that positions the end of the material bar centrally in the guide channel of a loading magazine.

A flyback diode is a diode connected across an inductor used to eliminate flyback, which is the sudden voltage spike seen across an inductive load when its supply current is suddenly reduced or interrupted.

The Earthing Switch is a manually operated device with safety interlocking keys, designed to ground electrical circuit on both side of AC Vacuum Circuit Breaker when the AC Vacuum Circuit Breaker is open.