The Strato-Start is a compact, high-performance inducer system designed to optimize the starting of slipring (wound rotor) induction motors. Engineered for both new installations and retrofit applications, it delivers superior reliability, simplified operation, and long-term cost savings compared to traditional resistor and contactor systems.

Strato-Start inducers can be built into new slipring starter equipment or retrofitted into existing rotor starter systems to replace failed components. In operation, the Strato-Start connects across the rotor winding, selecting the impedance required to match starting current and torque demands. A timer-controlled shorting contactor bypasses the Strato-Start once the motor reaches near full speed. During commissioning, test starts and simple adjustment of the Strato-Start tappings allow fine-tuning for the best balance between starting current and run-up time.