A critical review-power quality concerns

Power system quality concerns is the art and science of analyzing power system perf ormance within a facility to determine potential problem areas or to better understand known problems in an electrical distribution system. this mainly explain the various types of power disturbances such as for irritant disturbances, blinks, sags, dips, swells, transients, impulse transients, dc offs et, harmonics, notching, surges, voltage flu ctuation, flickering, spikes, phas e loss, outages, interruptions, under/over voltages etc. it also explains the impact ofthe disturbances for the power system operation. the emphasis has been given on data collection to understand power quality concerns. the primary sources of data collection based on technicians who spent most of their time near power system equipment. it also introduces terminology and various issues to power quality .