SQMC Cooling Tower Motor
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Direct drive, no gearbox, no long shaft, no coupling Reduced inventory costs Permanent magnet technology Water-tight motor design operates in the air stream Sensorless controlled by flux vector drivers Special bearing |
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Specifications
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Case Study: Cooling Tower Motor Upgrade
Old Conventional System
• 37 kW, 1,470 rpm, IE2 AC motor • Connected to gearbox (i = 6.1) • 3-meter shaft with couplings • Propeller at 4 degrees • Consumed 33.5 kW • No mention of efficiency or voltage Replacement • Old system replaced with existing fan • Propeller angle set to 8 degrees • Both systems have airspeed of 10.2 m/sec and airflow of 193 m³/sec Benefits • Reduced maintenance and costs • Improved reliability • Quieter operation (6 dB less) • Easy installation ( Compact Design ) |
Replaced with SQMC200-400 Motor
• 25 kW, 208 rpm, 1150 Nm • Efficiency: 93% • Nominal voltage: 354 V, 62 A • Driven by inverter Energy Effciency • Conventional system consumes 27,6% more Energy • Estimated electrical Cost Savings of 4.500 €/year • Payback period is short due to Cost Savings |
Common applications
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