Direct Drive Cooling Tower Motor and Drive System
This document from ABB details the innovative direct drive cooling tower motor and drive system. By eliminating traditional gearboxes and belts, this solution improves reliability, reduces maintenance, operates more quietly, and saves energy in demanding industrial applications.
Key Points
- Gearbox-Free Design: Eliminates gearboxes, belts, and couplings for reduced maintenance and improved reliability
- Low Noise & Vibration: Field tests show significant reductions in operating noise (82.3 dBA to 74.4 dBA) and vibration
- Advanced Drive Features: ABB ACS880 drive includes trickle current heating, de-ice mode, accelerometer feedback, and industrial protocol compatibility
- Extended Bearing Life: Oversized, sealed bearings rated for 100,000+ hours with Inpro/Seal® isolators for water ingress protection
- Energy Savings: Variable speed control reduces power consumption by 30–60% and cuts system losses by up to 50%
- Durable Construction: TEAO design with vacuum pressure impregnation (VPI) insulation system ensures long life in hot, humid environments
- Flexible Applications: Retrofit-ready for many gearbox bolt patterns or available in custom designs via the RPM AC cooling tower wizard