Harmonic distortion not only pollutes the electrical network it can also cause havoc for electrical equipment and instrumentation. They can interfere with communication equipment, will damage sensitive electronics, trip circuit breakers and blow fuses, be the cause of false readings when using measurement devices and the most well-known symptom, harmonics can cause lights to flicker on and off. Harmonics can cause generators, cables, capacitors and motors to overheat, causing a reduction in their life spans.
What equipment causes harmonic distortion?
Harmonic distortion is caused by everyday equipment, items like TVs, PCs, PLCs, photocopiers, domestic appliances, motor starters, LEDs and variable speed drives all can cause harmonic distortion!
Preventing harmonic distortion caused by Variable Speed Drives
To prevent harmonic distortion caused by variable speed drives consider choosing an ABB Ultra Low Harmonic Drives.
“Our ultra-low harmonic drive produces exceptionally low harmonic content and exceeds requirements set by low harmonic standards. Compared to a conventional drive, the harmonic content is reduced by up to 97%. The total harmonic current distortion is typically 3%. With a passive filter the typical total harmonic distortion is between 5 to 10%.”
With an ABB Ultra Low Harmonic Drive there is no need for filters, multi-pulse arrangements or special transformers as they have harmonic distortion mitigation built-in. The risk of overheating is drastically reduced so there is no need to over dimension transformers and cables.
Energy Efficiency with ABB Ultra Low Harmonic Drives
Because ABB Ultra Low Harmonic Drives achieve unity power factor, energy is used more efficiently.
“As harmonic currents are reduced, equipment wastes less energy and energy efficiency is considerably improved.”
Harmonic distortion solutions for all industries
The ABB ACS880-31 ultra low harmonic drive is suited to a wide range of industries, for Water there is an ACQ580-31 ultra low harmonic drive and for HVAC application the ACH580-31 ultra low harmonic drive.
For specific advice about applying ABB Ultra Low Harmonic Drives in your facility, please contact our experienced engineering team on 0115 944 1036 or email [email protected]