Wednesday, Jan. 29, 2003: New Harmonic Control Equipment From ABB
The new drives are available in a 10 to 700 hp range at 200 to 480 VAC and are built in Plenum-rated NEMA 1 or NEMA 12 enclosures; most units are built to contain both the transformers and drives. When required, transformers are available in separate enclosures.
For applications where lower levels of harmonic distortion are a requirement, ABB offers a Universal Harmonic Filter (UHF) from Mirus, 12- or 18-pulse rectifiers, or an active rectifier.