'Customised' process drive systems have low-harmonic technology

Engineered-to-order drive systems from Schneider Electric offer customised energy management.

Engineered-to-order Altivar process drive systems include a technology for lower harmonics. The range addresses customer challenges such as lack of space and extending equipment life cycles.

The company claims that its low-harmonic, three-level technology is a first in the market. It is based on a three-level technology that reduces the total current distortion factor THD(i) to a value less than 5% (in accordance with IEEE 519).

It also offers extended motor life. A common mode structure reduces voltage stress and peaks in voltage for a smoother waveform, reducing stress on the motor and extending the life of the motor.

To save space, the harmonics engineering results in internal filter components that are much smaller than the conventional two-level low-harmonic technology. The enclosure is supplied ready to connect and fulfills requirements for total current distortion factors.

The drive systems meet power needs of 110 to 800kW; there are plans to extend this to 1500kW.

Engineering starts with a base model, which uses standard enclosures and is ready to connect. The modular construction means the unit can be adapted to individual requests, making planning easier, and installation and commissioning quicker.

Dedicated engineering teams are available to work directly with the customers, help clarify specifications and ensure that the drives meet each client's industrial requirements, such as multi-drives, customised labelling, dedicated cooling for a tough outdoor environment, and specific arrangements like back-to-back drives.

The drive systems are available in three levels: light engineering, which incorporates a number of pre-defined options; engineered to order, which includes both pre-defined options and additional customer-specific engineering adaptations; and fully engineered to order.

The compact, tailor-made systems are fully load tested, having been stressed to determine the system's behaviour under both normal and anticipated peak load conditions.