PQ Tech has released the Smart Power Conditioner Model SPC, an active harmonic filter series suitable for single phase sub-distribution circuits.
Using digital signal processing, the product monitors harmonic current injected by non-linear loads such as SMPS systems, IT equipment, electronic fluorescent and lighting ballasts, and generates anti-phase current so that incoming power lines only carry the clean sinusoidal current required for the attached kilowatt load.
Model SPC Smart Power Conditioners, as single-phase devices, are suitable for phase to neutral voltages from 120 V to 400 V, and are available in line current ratings from 30 amps to 300 amps.
The product is connected in parallel with the load, and smaller units can be used for individual loads.
For larger power applications, units can be paralleled.
In three-phase, four-wire systems, three Model SPC Smart Power Conditioners can be connected between the individual phases and neutral, eliminating the 150 Hz triplen harmonic which can overload the neutral.