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Motors for Frequency Converter Drive

Motors for Variable Frequency Drives

  • ABB motors are suitable for frequency converter drives with minimal changes.
  • Vacuum Process Impregnation for all motors
  • Dual coated copper for 280 frame and above
  • Insulated bearing at NDE should be considered above 100kW or 315 frame.
  • 15% margin for Thermal limitations of VFD supply.
  • 30% to 100% Speed Range without forced cooling
  • Efficiency one level less. Example IE2 (IE1 with VFD)
  • For Hazardous area: Separate Testing and Certification for VFD motors
  • Reinforced insulation for 500V to 690V motors

VFD check points