Product Category

Soft Starter

What is Soft Start?

oft start is a technique designed to control the starting process of an electric motor with the goal of reducing the current surge that occurs during startup. This method helps protect the power grid and prolong the lifespan of the motor and associated equipment.

FST-3000 series built-in bypass soft starter

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Working Principle of Soft Start:

(1)Voltage Ramp: Throughout the startup phase, the soft starter incrementally raises the voltage applied to the motor, beginning at zero and increasing until it reaches the rated voltage. This progression may be linear or may follow a predefined curve.

(2)Current Limitation: Soft starters are capable of capping the starting current to ensure it does not surpass a predetermined maximum value. This feature helps mitigate the strain on the power grid and reduces thermal stress on the electric motor.

(3)Torque Control: By managing both voltage and current, soft starters enable a smooth increase in torque, thereby preventing mechanical shocks.

Advantages of Soft Start:

(1)Reduce Current Surge: Soft starters can substantially decrease the peak current during motor startup, thus lessening the impact on the power grid.

(2)Extend Equipment Lifespan: By diminishing the mechanical and electrical stress during startup, the service life of motors, switchgear, and the power grid can be extended.

(3)Reduce Maintenance Costs: Lowering the wear and tear on equipment leads to reduced maintenance expenses and less downtime.

(4)Improve System Reliability: Soft starters help in reducing potential startup failures, thereby increasing the overall dependability of the system.

Application Scenarios for Soft Start:

Pumps: Soft starters help prevent the water hammer effect and reduce wear on pipelines and pumps during startup.

Fans: For fan applications, soft starters minimize the mechanical impact during startup, safeguarding bearings and blades.

Compressors: Soft starters lessen the power grid impact and protect both the motor and the compressor at startup.

Conveyor Belts: Soft starters facilitate a smooth startup for conveyor belts, decreasing the stress on both the belt and the drive system.

Soft starting technology offers a safer and more reliable method for starting electric motors, making it an essential component in modern industrial settings.

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Product Category

Soft Starter

What is Soft Start?

FST-3000 series built-in bypass soft starter

Working Principle of Soft Start:

Advantages of Soft Start:

Application Scenarios for Soft Start:

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