Title :
Dynamic sag correctors: cost-effective industrial power line conditioning
Author :
Brumsickle, William E. ; Schneider, Robert S. ; Luckjiff, Glen A. ; Divan, Deepak M. ; McGranaghan, Mark F.
Author_Institution :
Soft Switching Technol. Corp., Middleton, WI, USA
Abstract :
Voltage sags, transients, and momentary interruption of power together constitute 92% of the power quality problems encountered by typical industrial customers. The series-parallel-connected dynamic sag corrector (DySC) provides statistically significant protection at greatly reduced cost. The DySC is rated from 1.5 kVA one phase to 2000 kVA three phase and features a patented single-stage power conversion circuit with minimal stored energy. A unique circuit allows operation with an opened upstream circuit breaker. This paper presents a detailed discussion of DySC operating principles and validation of performance. It also provides conditions under which this new category of product can be applied
Keywords :
industrial power systems; power convertors; power distribution protection; power supply quality; 1.5 to 2000 kVA; dynamic sag correctors; industrial power line conditioning; minimal stored energy; momentary power interruption; one phase; opened upstream circuit breaker; operating principles; power quality; series-parallel-connected dynamic sag corrector; single-stage power conversion circuit; three phase; transients; voltage interruptions; voltage sags; Circuits; Costs; Industry Applications Society; Power conversion; Power quality; Power system dynamics; Power systems; Protection; Uninterruptible power systems; Voltage;
Journal_Title :
Industry Applications, IEEE Transactions on
