Variable Frequency Drive Pumps

One of the main advantages of using a VFD is the energy cost savings associated with speed control. When using belts, sheaves, or gearboxes to reduce speed, the motor still runs at full speed; however, a VFD reduces the actual motor speed, which reduces the amps drawn by the motor. This reduces the amount of energy used—and saves you energy costs. By ramping up the motor speed slowly, VFDs will help you save energy by reducing the in-rush and mechanical issues associated with starting motors across the line.

When it comes to selecting the right VFD, WaterTec’s expert technicians can help you to determine which type of drive works best for your application. 

3 Reasons For Using A VFD

  1. Possible financial rebate incentives from your energy provider.
  2. Improved efficiency of motor-driven equipment by matching speed to changing load requirements, allowing accurate and continuous process control over a wide range of speeds.
  3. VFDs provide the benefits of network communications, a user-friendly interface, easy auto-tuning and programming, and ease of installation.

VFD Advantages

  • A VFD may be used for control of process temperature, pressure, or flow without the use of a separate controller. Suitable sensors and electronics are used to interface the driven equipment with the VFD.
  • Lower maintenance costs, as lower operating speeds result in longer life for bearings and motors.
  • The motor does not require a starter.
  • The ability of a VFD to limit torque to a user-selected level protects driven equipment that cannot tolerate excessive torque.
  • Users can utilize multi-motor applications, such as pumps or fans, with one control unit.

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