Ultra Low Harmonic Drives

The ACS880 drive offers a compact cost-effective solution to meet the strictest harmonic requirements without the need for additional filters or special transformers. This offers significant savings in space, time and cost. The compact drive includes a low harmonic line filter and an active supply unit, which is able to boost output to guarantee full motor voltage even when the supply voltage is below nominal. This ensures reliable operation in unstable supply network conditions. The drive’s voltage boost capability also improves motor efficiency – with a higher voltage, the same power is achieved with less current.

• Compact package: Designed for easy installation.
• Easy commissioning: No need to set extra parameters for the active supply unit.
• Low harmonic content: Total harmonic current distortion is typically <3% in nominal situation and undistorted network.
• Unity power factor: Possibility also for network power factor correction.
• Voltage boost: Guarantees full motor voltage in all conditions and can also be utilized to overcome a voltage drop caused by long supply or motor cables or output filters. Voltage boost capability may allow a smaller motor to be used.
• Nine-year maintenance interval factory-tested solution for high reliability: All ACS880 drives are tested at maximum temperature with nominal loads.

• All situation where harmonics/power quality are becoming an issue
• All large VSD controlled motor applications or with a large amount of drives
• In fact all situations where drives are being used to control motors

• The ultra-low harmonic drives achieve a unity power factor. This high power factor indicates that the electrical energy is used to its full potential.
• As harmonic currents are reduced, equipment wastes less energy and energy efficiency is considerably improved.

• The drive offers a possibility for network power factor correction in order to compensate for low power factors of equipment connected to the same network. It reduces the need for additional power factor correction equipment, such as filters and large capacitor banks. It can also help to avoid penalty charges set by electrical utilities for poor power factors.
• Reduction of cable diameter
• Lifetime extention of equipment