What is a characteristic difference between a reactor starter and a resistance starter?

A characteristic difference between a reactor starter and a resistance starter is that reactor starters use induction coils. This is significant because reactor starters employ an inductive method for controlling the starting current applied to an electric motor, which helps reduce the initial inrush current as well as the mechanical stress on the motor. The coil creates a magnetic field that limits the current until the motor reaches a certain speed, at which point the reactor can be bypassed.

In contrast, resistance starters utilize resistors to limit the current flow during motor start-up. While both starters aim to protect the motor from damage during start-up, the method of achieving this protection is fundamentally different with reactor starters relying on electromagnetic principles through induction rather than resistive methods. This design choice not only improves efficiency but also enhances the overall performance and lifespan of the motor compared to resistance starters.