Voith Turbo
The VECO-Drive (photo) is an electric superimposing gear that combines a mechanical planetary gear with frequency-controlled servo motors. The electrical superimposing gear is said to be the most efficient way to make speed variable. The servo motors used to drive the planetary gear only need a small part of the rated power, resulting in an overall component efficiency of more than 97%, according to the manufacturer. The VECO-Drive is installed between a constant-speed motor and a variable-speed compressor or pump. Since additional power is supplied to the drivetrain, a smaller main motor can be used, saving capital expenditures. Moreover, the servo motor can be used as a starter to protect the electric grid from high inrush currents. The VECO-Drive is designed as a modular system and thus offers individual specifications for different application types, classes of explosion protection and speed levels. Advanced functions like the integrated PLC-based output controller, user interfaces, condition monitoring and simplified maintenance are part of the scope of supply, and remote access and remote diagnosis are available as needed. Booth 2145 — Voith Turbo, Inc., York, Pa.