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Chuaneng soft start (90KW and above)

CN-SCKR series soft starter, with MCU as the core and intelligent digital control, is suitable for starting squirrel-cage asynchronous motors with various loads; it can enable the motor to start smoothly under any working conditions and is well protected The drag system reduces the impact of the starting current on the power grid and ensures reliable starting of the motor; smooth deceleration and parking can eliminate the anti-inertia impact of the drag system; the complete system protection function extends the service life of the system, reduces the system cost, and improves the system High reliability; compatible with various functions of all starting equipment, it is the most ideal replacement product for traditional star-delta, auto-coupling step-down starting, magnetic control step-down starting, etc.

Classification:

  • Description
  • Parameters

    Product introduction (90KW and above)
    Features
    ◎ It has six starting modes: current limit start, voltage ramp start, kick+current limit start, kick+voltage ramp start, current ramp start, and double closed-loop start.
    ◎ Parking methods: soft parking, free parking.
    ◎ Equipped with a variety of protection functions: overcurrent protection, phase loss protection, three-phase current unbalance protection, overheating protection, motor overload protection, overvoltage protection, load short circuit protection, etc.
    ◎ It has a dynamic fault recording function, which can record the ten faults that have occurred recently, making it easy to find the cause of the fault.
    ◎ Soft start and soft stop time are adjustable from 2 to 60 seconds.
    ◎ Large-screen LCD display in Chinese, convenient for parameter setting and query; real-time display of working status, which can replace some instrumentation and digital display functions.
    ◎ It realizes current and voltage double closed-loop control and torque closed-loop control, and is suitable for start and stop control of various different motors.
    ◎ With programmable fault relay output, multi-function programmable relay output, 0-20mA (or 4-20mA) analog current output.
    ◎ When the motor does not need speed regulation, it can partially replace the frequency converter and the cost is lower.
    ◎ Communication function: Chinese PC software can be provided to facilitate remote debugging and control by users.
    Complete motor protection function
    ◎ External fault input protection (instantaneous stop terminal): used to add special protection devices, such as thermal relays, etc.
    ◎ Voltage loss protection: After the soft starter is powered off and powered on again, no matter what position the control terminal is, it will not start on its own to avoid injury.
    ◎ Long starting time protection: If the soft starter fails to start within the set time due to improper parameter settings or other reasons, the soft starter will protect itself.
    ◎ Soft starter overheating protection: When the temperature rises to 80°C + 5°C, the protection will operate, and the action time will be < 0.1 seconds; when the temperature drops to 55°C (minimum), the overheating protection will be released.
    ◎ Input phase loss protection delay time: <3 seconds
    ◎ Output phase loss protection lag time: <3 seconds
    ◎ Three-phase unbalance protection lag time: <3 seconds, current deviation is greater than 50%.
    ◎ Starting overload protection time: The protection time when the current during starting is continuously greater than 5 times the rated operating current of the motor.
    ◎ Operation overload protection time: Inverse time thermal protection is based on the rated operating current of the motor, and refers to the tripping protection time curve.
    ◎ Low power supply voltage protection delay time: When the power supply voltage is lower than 50% of the limit value, the protection action time is <0.5 seconds; otherwise, when the power supply voltage is lower than the set value, the protection action time is <3 seconds.
    ◎ Over-voltage protection delay time: When the power supply voltage is higher than the limit value of 130%, the protection action time is <0.5 seconds; otherwise, when the power supply voltage is higher than the set value, the protection action time is <3 seconds.
    ◎ Load short-circuit protection lag time: <0.1 seconds, the current is more than 10 times the nominal motor current rating of the soft starter.



    CN-SCKR series soft starter, with MCU as the core and intelligent digital control, is suitable for starting squirrel-cage asynchronous motors with various loads; it can enable the motor to start smoothly under any working conditions and is well protected The drag system reduces the impact of the starting current on the power grid and ensures reliable starting of the motor; smooth deceleration and parking can eliminate the anti-inertia impact of the drag system; the complete system protection function extends the service life of the system, reduces the system cost, and improves the system High reliability; compatible with various functions of all starting equipment, it is the most ideal replacement product for traditional star-delta, auto-coupling step-down starting, magnetic control step-down starting, etc.

 

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