1st Quarter 2013Electrical switching & drive systems & components
Zest WEG Group recently commissioned an installation at a sugar mill in Mozambique that not only led to robust improvements in centrifuge performance, but also achieved significant energy savings.
The scope of supply included three 132 kW squirrel cage electric motors from WEG`s W22 range and three WEG AFW11 variable speed drives with an active front end to drive the mill’s centrifuges. The drives supplied were equipped with a regenerative unit that regenerated energy back to the supply under braking conditions and the design of the motors was also customised to avoid any change on the existing installation.
The mill’s existing motor also had external cooling and additional 18,5 kW motors were used to draw clean air in from the outside atmosphere. The solution provided by Zest WEG Group completely eliminated the need for this external cooling system, thereby saving on energy.
In addition to a 30% improvement in productivity, the quality of the sugar from the new centrifuges also improved at the mill. The existing system had taken too long to slow down and the sugar had dried out more, creating a caking effect. With the new system, the mill operating team now has more flexibility and control over the drying times.
The installation, fully customised to integrate with existing technology, was installed and commissioned within a week. At the same time, the Zest team installed an 800 kW motor in another area of the mill to control the cane cutter and a 1,8 MW slipring motor to power the cane shredder.
Read more...PC-based control for additive machine tools Beckhoff Automation
Editor's Choice Electrical switching & drive systems & components
IRPD is a specialist in additive machine tools. Development is heavily focused on high system throughput and consistently high process quality. This goal was achieved with the help of PC- and EtherCAT-based control and drive technology from Beckhoff.
Read more...Major software release for Parker PSD servo drives Parker Hannifin - Sales Company South Africa
Electrical switching & drive systems & components
Parker Hannifin has released its PSD servo drive family delivering new control modes, advanced synchronisation functions and performance optimisations designed to improve throughput, accuracy and system efficiency in demanding industrial applications.
Read more...Beckhoff expands economy drive system Beckhoff Automation
Electrical switching & drive systems & components
Beckhoff’s new AM1000 servomotor joins the company’s economy drive system. The compact, powerful motor and the AX1000 servo drive provide users with a perfectly coordinated, cost-optimised drive system.
Read more...Moving next-generation monopiles
Electrical switching & drive systems & components
Wind turbine sizes are increasing at an unprecedented rate. The bigger the turbine, the more power it can generate and the fewer are needed per wind farm. Mammoet has been ahead of the curve in coming up with ways to make the movement of even XXL monopiles faster and more cost-effectively.
Read more...PC-based control for flat wire motors for electric vehicles Beckhoff Automation
Electrical switching & drive systems & components
Special machine manufacturer, ruhlamat Huarui Automation Technologies has unveiled the second generation of its mass production line for flexible stators with bar winding (pins). This enables an extremely short production cycle and line changeover times, supported by PC- and EtherCAT-based control technology from Beckhoff.
Read more...New generation surface drill rig
Electrical switching & drive systems & components
Epiroc South Africa is launching a new and improved PowerROC T45. This new generation surface drill rig offers increased fuel efficiency and high availability, and is a welcome addition to the PowerROC family.
Read more...Rip-and-ship solution speeds up nuclear decommissioning project
Electrical switching & drive systems & components
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...Helping to solve wastewater challenges
Electrical switching & drive systems & components
KSB Pumps and Valves is doubling its efforts to help government and municipalities find practical and technical solutions to the growing wastewater challenges gripping large parts of the country.
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