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Variable speed drives help overcome harmonic challenges

11 November 2019

ABB’s ACQ580 ultra-low harmonic drives incorporate a harmonic reduction method which means that no additional filters or special transformers are needed. 

ABB’s ACQ580 range of variable speed drives (VSDs) now include an ultra-low harmonic (ULH) version which is said to ensure reliable operation even in unstable power supply conditions by keeping the network clean from troublesome harmonics.

Harmonics can damage sensitive electronic equipment, trip circuit breakers, blow fuses and cause capacitor failures. They can also interfere with communication systems and cause false readings on measurement devices. In the worst cases, harmonics cause costly process interruptions.

The traditional approach to tackle problems created by harmonics is to add filters, multipulse transformers or over-dimensioning equipment. However, the ABB ACQ580 requires no external filters or any special equipment.

The ACQ580 is also compatible with ABB Ability monitoring services, which enables customers to obtain real-time data about the drive status and performance from any location. 

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