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  • What is the difference between a soft starter and a VFD (variable frequency drive) for electric motors?
    • September 03. 2021

    The major difference between soft starter and VFD are as follows. 1. Soft starter is used to start and stop the motor smoothly., without jerk load. 2. The starting torque delivering capacity of the soft starter is poor as V/f ratio or the flux is much lower than the rated capacity of the motor flux. It is suitable for the driven equipment which start at almost no load. 3. VFD is also soft start an...

  • Basic benefits of AC Drives
    • December 20. 2021

    Six Basic benefits of AC Drives are: 1. Keeps starting current in control: A VFD has the capability of starting the motor at zero voltage and frequency, which keeps a check on motor winding flexing and heat generation. This helps in extending the motor life. 2. Reduces power line disturbances: Any voltage sag caused in the power line can adversely affect voltage sensitive devices such as...

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