DPA Magazine | Features - The Engineer's Trusted Source of inductry articles

High power and load? Think ‘synchronous’

09/07/2012

Synchronous motors are increasingly the motor of choice in high power, heavy load applications, writes Marek Lukaszczyk. This is because they are able to correct power factor at the motor power supply, thus reducing electrical power consumption and improving electrical efficiency.

Inverter takes the jerks out of water skiing

02/07/2012

Waterskiing without a boat seems an unlikely prospect until one considers that until the advent of winch launches, gliders always had to be towed into the air. Now a Russian entrepreneur has done a similar thing for waterskiing, replacing the boat that pulls the skier with an electric motor controlled by one of Lenze’s IP31- rated SMVector drives.

Air motors: they're a gas!

27/06/2012

Dagmar Dubbelde offers four examples that demonstrate the versatility of air motors, from a device that turns waste process gas into useful electrical energy, to an ATEX-compliant brake motor at the heart of a system that empties toxic products from barrels.

Number-crunching FPGAs take the strain

27/06/2012

Motor control algorithms are evolving and so too are the electronic platforms upon which they run. Ralph Bergmann takes a look at the FPGA, and how it can provide a single-chip solution to even the most complex of motor control applications

Getting it right from the start

27/06/2012

These days, it’s easy to get the impression that variable speed drives are the best choice for controlling any motor in any application. But it’s not that easy, says Peter Schaffel, who explains how choosing the right motor starting technology is the key to optimising energy efficiency and to maximising plant life.

Drives Motors Features

High power and load? Think ‘synchronous’

Inverter takes the jerks out of water skiing

Air motors: they're a gas!

Number-crunching FPGAs take the strain

Getting it right from the start