As a result of the wide-ranging addition of electronically controlled
equipment within the last five to ten years, the lack of industry stan
dards and application criteria in the area of power quality has become
very evident, This paper outlines the significant factors associated
with power quality by summarizing the key considerations, the relevant
standards, the areas where standards are being developed, and useful
application guidelines, Power quality is discussed here in terms of th
ree major categories-system disturbances, harmonic distortion, and gro
unding.