Rockwell Automation has announced the launch of the Allen-Bradley PowerFlex 700L liquid cooled drive. This technology enables the unit to be utilised in conditions where air-cooled versions may increase costs or operate unreliably, for instance in dust-filled environments. The system offers high performance, energy efficiency and requires less floor space than conventional air-cooled units. Potential applications include chillers, lathes, centrifuges, oilfield machinery, marine propulsion and log carriages.
Available in power ranges from 150-860 kW, the PowerFlex 700L features IGBTs (insulated gate bipolar transistors) instead of diodes in its AC to DC converter section. This provides the drive with an active rectifier that enables the energy regenerated during motor braking to be safely returned to the facility's power system thereby boosting efficiency. Regenerative energy is actively modulated to reduce harmonic disturbance levels below IEEE 519 and CE requirements without additional filtering.
According to Rockwell Automation, unlike other liquid-cooled drives that require a coolant line to each power transistor, the PowerFlex 700L features a single cooling input and output. This proprietary liquid-cooled heatsink greatly increases power density, resulting in a drive that is up to 65% smaller than similarly power-rated air-cooled drives. The simplified cooling strategy makes it easy for users to integrate with existing systems, or incorporate a heat exchanger for dissipation to the atmosphere.
The active rectifier provides the PowerFlex 700L with the ability to boost and regulate the drive's DC bus voltage, thereby minimising the effects of input disturbances and power line dips and helping to protect sensitive processes. The design topology also provides a power line voltage boost that enables the drive to control a single voltage motor on both 480 and 380 V power lines. This flexibility is particularly beneficial to OEMs building machines for the international market.
Novel bearing steel next generation of aeroengines SKF South Africa
Motion Control & Drives
SKF continues to re-imagine intelligent and clean rotation with the development of an innovative temperature-resistant, corrosion-tolerant steel called ARCTIC15 designed for aeroengine bearings.
Read more...Products from maxon
Motion Control & Drives
A wide range of new products is available from motion control specialist, maxon. with a diverse technology portfolio ranging from highly integrated robotic actuators to powerful servo drives and controllers.
Read more...Actuators for precise hexapod movements
Motion Control & Drives
Aerotech, manufacturer of high-performance motion control and automation systems, is expanding its Automation1 platform. These compact hexapod devices enable the complete integration of six-axis motion systems into existing control
Read more...SEW-EURODRIVE service centre transforms future of drive repairs SEW-EURODRIVE
Motion Control & Drives
In a momentous step for the local industrial gearbox and drives market, SEW-EURODRIVE South Africa has formally opened a new service and repair facility alongside its headquarters in Aeroton,
Read more...Precision meets performance: The ELGD Axes Family from Festo Festo South Africa
Motion Control & Drives
Festo has introduced the ELGD axes family, engineered for the demands of future-focused industries. With cutting-edge guide technology, exceptional rigidity and high load capacity, these axes deliver more performance within the same installation footprint.
Read more...Condition monitoring in hazardous areas SKF South Africa
Motion Control & Drives
SKF is further strengthening its condition monitoring offer portfolio by a newly developed hazardous area version of its Microlog Analyzer dBX portable vibration analyser.
Read more...Rip-and-ship solution speeds up nuclear decommissioning project
Motion Control & Drives
When removing steam generators from decommissioned nuclear reactor buildings, the most economical method is to remove them in one piece. Mammoet was commissioned by Framatome to support with the removal of four steam generators from PreussenElektra’s Nuclear Power Plant Unterweser in Germany.
Read more...WearCheck turns the focus on friction modifiers Wearcheck
Motion Control & Drives
One of the most important features of a lubricant is the reduction of friction between two surfaces.A dditives like friction modifiers are added to perform this function. Wearcheck turns the focus on friction modifiers
Read more...SEW-EURODRIVE transforms drivetrain uptime SEW-EURODRIVE
Editor's Choice Motion Control & Drives
The DriveRadar IoT Suite from SEW-Eurodrive is an ideal solution for industrial condition monitoring. This powerful ecosystem of intelligent sensors, edge devices and cloud-based analytics ensures that customers have full visibility and control of their operations.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version