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Variable Frequency Drive (VFD)

1,023,392.48

A Variable Frequency Drive (VFD) is a motor control device that optimizes the speed and torque of AC induction motors by dynamically adjusting the voltage and frequency of the electrical supply 


How It Works

  1. Rectifier Stage – Converts incoming AC power into DC.

  2. DC Bus – Uses capacitors to smooth the converted power.

  3. Inverter with PWM Control – Converts DC back into AC with adjustable voltage and frequency.

  4. Control System – Ensures a constant voltage-to-frequency ratio (V/f), allowing precise motor speed regulation

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Key Benefits

  • Energy Efficiency: Matches motor output to load requirements—fans and pumps can see up to ~50% energy savings at partial speed 

  • Smooth Start/Stop: Eliminates mechanical shock and reduces inrush current, prolonging equipment life 

  • Enhanced Process Control: Enables variable speed, torque, and direction control—ideal for conveyors, pumps, HVAC, and compressors 

  • Motor Protection: Built-in features like overload protection, phase-loss detection, and soft-start functionality 

  • Reduced Maintenance: Less stress on mechanical parts means less maintenance and longer operational life .

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