• Amit Kumar Singh

The power quality (PQ) problem in power system exist due to variegated reasons and effects function and operation of the various components that exist in the power system. The power quality problem became predominant in the power system studies in early 1990's with the implementation of various power electronic and FACTs devices in the power system operation. The power quality in power systems can be viewed as cumulative effect of current and voltage quality. Power quality includes various phenomenon like voltage sag, voltage swell, flickers, interruptions, sustained interruptions etc. Power quality problems cause many problems and accounts for heavy economic losses in the power system. Various methods have been formulated for the improvement of PQ problems. In this paper, several methods for power quality improvement are discussed and an overview of economics related to these power quality problems is talkedover.

Power quality; Undervoltages; Over voltages; surges; Compensators

"Power Quality And Economic Consequences Of Poor Power Quality", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 1, page no.1354-1360, January 2019, Available :http://www.jetir.org/papers/JETIRDW06218.pdf

"Power Quality And Economic Consequences Of Poor Power Quality", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 1, page no. pp1354-1360, January 2019, Available at : http://www.jetir.org/papers/JETIRDW06218.pdf