Electrical switching & drive systems & components


Latest Articles

Motor bearing current phenomenon
3rd Quarter 2011
Yaskawa application note.       Introduction Since the introduction of PWM inverters, it has been recognised that PWM inverters introduce motor shaft voltages and bearing currents. The bearing damage in ...

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Heavy duty slurry pumps
29 June 2011
The RXL heavy duty slurry pump series encompasses a uniquely designed horizontal back suction unit

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Energy efficient electric motors
29 June 2011, Bearing Man Group T/A BMG
BMG Drives has launched a new generation of energy efficient electric motors, the IE2 range, which is distinguishable by a yellow cowl

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Kilometres of diffuser chain
29 June 2011, Bearing Man Group T/A BMG
Tsubaki NFP250 chain is manufactured in Japan from special heat treated stainless steel pins and bushes for corrosion and wear resistance

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Permanent magnet solutions
29 June 2011
New to Leroy Somer’s range of electric motors, drives and industrial automation systems are permanent magnet solutions for synchronous drives and motors which are designed to improve operating performance and reduce electricity consumption

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Motion control architecture
29 June 2011
The most common solution to move a load uses electromechanical components such as motors

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Smooth, precise linear motion
29 June 2011
The EMA linear actuator range from PowerJacks has been developed to provide smooth and precise linear motion for low to medium duty applications with loads up to 10 kN

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VSD secures production
2nd Quarter 2011, Nidec Industrial Automation Southern Africa
The installation of a large variable speed AC drive and bypass on a pump has ensured production security at a South African gold mine

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All-in-one drive system
2nd Quarter 2011, SEW-EURODRIVE
SEW-Eurodrive, has released the Movigear B, the latest extension to the company’s Movigear family of all in one decentralised mechatronic drive systems. The Movigear B series comprises motor, gear unit ...

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Hard rock is no obstacle
2nd Quarter 2011
Astec Underground’s Trencor 1760, one of the world’s largest and most powerful trenchers, was fitted out with an intelligent Sauer-Danfoss system. Whether digging a trench for a new gas or oil pipeline, ...

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Anti-backlash actuators
2nd Quarter 2011
Backlash occurs when the motor driving an actuator reverses its load direction. If there is a gap between the lifting screw and the worm gear thread, detrimental screw movement occurs. Typical load-reversing ...

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From aerospace to mining
2nd Quarter 2011, Technews Publishing
In this issue we are aiming to become more industry focused rather than having a technology orientation. While still including drives, hydraulics and pneumatics, this time we have industry profiles covering ...

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Motion control life saver
2nd Quarter 2011
Precision flying in emergency and rescue situations is a crucial factor in saving lives. What makes today’s professional flight training so effective is the ability of training simulators to create the ...

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Electronic variable speed drive systems
30 March 2011, Bearing Man Group T/A BMG
Through the recent acquisition of Velo Control, BMG Drives has extended its product portfolio to include Danfoss variable speed drive systems

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Conveyor drives for a coal terminal
30 March 2011
Hansen has more than 400 gearboxes, driving tipplers, conveyors, stacker reclaimers and ship loaders at this facility

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Low voltage alternators that comply
30 March 2011
Leroy-Somer has launched a new range of low voltage alternators that comply with all requirements of the global generator market

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Gear drives for gasifiers
30 March 2011
Hansen Transmissions secured an order in March 2010 for the supply of nine gear drives for the expansion of the Sasol FBDB gasification facility at the Sasol Synfuels plant in Secunda

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Future drive technologies
1st Quarter 2011, Siemens South Africa
A key finding of the Trendts Survey was that efficiency in industrial production flows will become an ever more significant competitive factor

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Efficient H1 pumps and motors lead the way
1st Quarter 2011
The H1 pump is designed to reduce rotating group, control and charge pump losses

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Energy efficient motors from Siemens
1st Quarter 2011, Siemens South Africa
Siemens Drive Technologies Division is supplementing its energy efficient IEC low voltage motors with two new frame sizes for the aluminium range and is also increasing the power rating on the rugged ...

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