Drive systems

Variable Frequency Drives

Medium-voltage drives for precise motor control, energy savings, and reduced mechanical stress.

Variable Frequency Drives industrial motor solution

Variable Frequency Drives specifications and applications

Palmera supplies medium-voltage drives for demanding industrial applications requiring high-quality power input and near-perfect output.

The system supports flexible installation, intuitive HMI operation, and comprehensive protection functions.

  • 250 to 10,000 kW
  • 2.4 to 13.8 kV
  • Cell-based MV
  • IEC / IEEE / GB
Variable Frequency Drives product image Variable Frequency Drives product image

Engineering considerations

VFD-compatible motor replacement

VFD-compatible motors require review of the original drive design, harmonic effects, insulation stress, and the ability to operate without changing existing drive settings.

  • Account for THD and high-voltage spike insulation stress
  • Use motor and VFD design data during replacement engineering
  • Witness testing can simulate real operating conditions and load

DC-to-AC conversion

Old DC motors can be replaced with AC motors and VFDs when output characteristics are matched to protect the driven machine and process.

  • Match output characteristics of the existing DC motor
  • Maintain dimensional and mechanical interfaces
  • Requires direct access to experienced motor and drive design teams

Related case studies

DC-to-AC motor conversion with VFD control

DC-to-AC motor conversion with VFD control

An obsolete DC motor replacement path was converted into an AC motor and VFD package while protecting the driven machine requirements.

Open Case Study

VFD-compatible slurry pump replacement

VFD-compatible slurry pump replacement

A copper mine slurry pump motor was replaced with a VFD-compatible design and improved electrical performance.

Open Case Study