How Model Train Locomotives Work

A locomotive runs by picking up an electrical current from the metal rails through metal wheels that ride on the rails. The electricity is transferred from the wheels to the motor, which causes the motor to run.

How Model Train Track Works And What Can Go Wrong

Model train track consists of two metal rails separated by plastic tie sections. Each rail carries one side of the electrical circuit. To work properly, the two rails should not contact each other and no metal object should contact both rails together.