Strato-Start Slipring Motor Starters
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.
Key Features:
- Compact Size โ Smaller than conventional systems, yet with high thermal capacity to handle difficult or high-inertia loads.
- Simplicity โ Requires only one shorting contactor, reducing system complexity, space, and cost.
- High Performance โ Ideal for inching, reversing, and plug braking without the need for extra rotor controls.
- Low Maintenance โ No moving parts, liquids, or chemicals, ensuring many years of service without adjustment.
- Reliability โ Robust construction for heavy-duty use with built-in thermal cut-out protection.
- Flexibility โ One unit can start a wide range of motors. The front panel allows precise adjustment of torque and current at commissioning, with consistent energy capacity regardless of tapping selection.
The Result:
A reliable, space-saving, and maintenance-free motor starting solution that ensures smoother starts, reduced downtime, and long-term performance across industries.
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