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Traction VVVF – Quattro DC & AC

When selecting a drive for DC motor applications, you need look no further than Lester Controls’ DC partner. This stand-alone unit offers compatibility with Lester Controls serial communication and DTF operation.

Quattro consumes the lowest energy possible, saving as much as 25% over DC-SCR drives and as much as 45% over Motor Generator (MG) sets. Achieving an impressive unity power factor of over 0.95, Quattro uses current effectively, avoiding the wastage which causes excess heat in the electrical distribution system. The AC sister drive, mirroring many of the DC features, has recently been introduced. Details are available on application.

Clean Harmonics

Benefits of Quattro’s built-in clean utility
side drive harmonics (>8% THDI):

  • Reduced heating
  • Better utilisation of existing line equipment
  • Prevents interference from other user apparatus

Lower Installation Costs

  • No need to upgrade the building’s utility feed supplier
  • No isolation transformer or ripple filter required
  • Fewer cabinets to wire on site

Features and Benefits

  • Regenerative Power Conversion for DC Motors inclusive
  • Clean Utility Side Harmonics
  • High Power Factor
  • Multiple Input Voltage Ranges
    200 – 480 VAC, 50 / 60 Hz
  • Elevator Rated
    250% Overload
    45˚C Amb. (Exterior to Cabinet)
  • Designed for 80,000 Hours of Lift Duty