Electrical switching & drive systems & components


New AC drives reduce energy costs

3rd Quarter 2017 Electrical switching & drive systems & components

Rockwell Automation has introduced a suite of drive solutions that will help users reduce energy costs and increase machine uptime in high demand applications. The Allen-Bradley PowerFlex 755T drives provide harmonic mitigation, regeneration and common bus system configurations. This latest PowerFlex drive offering marks the introduction of TotalFORCE drive technology, which delivers superior motor control through precise, adaptive control of velocity, torque and position for electric motors. They are all compliant with IEEE 519 and have comprehensive diagnostic and maintenance features with simplified startup and installation.

The PowerFlex 755TL low-harmonic drive uses active, front-end technology and an internal harmonic filter to reduce harmonic distortion. The drive is available from 160 to 1250 kW. The PowerFlex 755TR regenerative drive delivers power from 160 to 2300 kW and includes both regenerative and harmonic mitigation solutions. This drive helps reduce energy consumption and costs by delivering energy back to the incoming supply, resulting in a more energy-efficient solution. The PowerFlex 755TM common DC bus drive system allows users to build the system that best fits their needs for regeneration and coordination of multiple motors in common bus configurations. The three drive solutions have advanced predictive diagnostics to estimate and provide notification of the remaining life span of drive components such as fans, relay contacts, power semiconductors and capacitors. Users can actively monitor parameters such as temperature and runtime of the drive and motor to allow for preventive action if necessary.

For more information contact Adrian van Wyk, Rockwell Automation, +27 (0)11 654 9700, avanwyk@ra.rockwell.com, www.rockwellautomation.co.za



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