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5.5Kw -600Kw Soft Starters 220V-690V 3Phase

Supplier From China
Apr-02-19

1. Reduce the starting current, reduce power supply peak current, reduce the cost of distribution equipment. Reduce the abrasionmotor, improve the service life of mechanical equipment.

2. Optional starting parameters are convenient in one soft starter starting different motors.

3. Soft starter inspects motor feedback voltage to realize closed loop control, ensure the motor start-up success in different conditions and different loads.

4. A variety of starting ways: voltage ramp starting way can get the maximum output torque; Current limiting can realize biggest limitations of the soft start starting current.

5. Reliable quality assurance: using computer simulation design; SMT production process; Excellent electromagnetic compatibility performance, High temperature aging, vibration test of the machine before delivery.


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The RUIJING soft start controller - RJ-ASSU220P5 provides an effective solution in reduction of start-up current, typically up to 70%, but still provides full startup torque for compressors and motors. Across the line starting of air-conditioner compressor or induction motors is accompanied by inrush currents up to 7-8 times higher than running current, and starting torque up to 3 times higher than running torque. The increased unnecessary torque results in sudden mechanical stress on the machine which leads to increased wear and higher service costs and reduced service life. Moreover, the high inrush current and current peaks may stress the power supply system to increased mains and generator loads which may lead to voltage dips results in breaking down of other valuable equipment or system function.

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