New Altivar process drives feature low-harmonic three-level technology
17 April 2015
Schneider Electric has unveiled its new engineered-to-order Altivar Process Drive systems, which include an innovative technology for lower harmonics.
This new range addresses a number of customer challenges such as lack of space and extending equipment life cycles.
The newly developed low-harmonics concept is based on a three-level technology that reduces the total current distortion factor THD(i) to a value less than 5 percent (in accordance with IEEE 519).
A common mode structure reduces voltage stress and peaks in voltage for a smoother waveform, thus reducing stress on the motor and extending the life of the motor.
The harmonics engineering results in internal filter components that are much smaller than the conventional 2-level low-harmonic technology, allowing the Drive Systems to take up less space on the factory floor.
During development of the enclosure, particular attention was paid to the simplicity of installation and operation. The result is an enclosure that is ready to connect and that fulfils requirements for total current distortion factors.
The Altivar Process Drive Systems meet power needs of 110 – 800kW, and there are plans to extend this to 1,500kW. Engineering starts with a base model, which uses standard enclosures and is ready to connect. The modular construction makes it possible to adapt the enclosure unit to individual requests, making planning easier, and installation and commissioning quicker.
Altivar Process Drive systems are available in three levels according to customer requirements:
- Light engineering, which incorporates a number of predefined options
- Engineered to order, which includes both predefined options and additional customer-specific engineering adaptations
- Fully engineered to order, which is a completely customised system.
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