Power Quality Problems, their Power Quality (IEEE & IEC) Standards in Power System

Power Quality is a set of boundaries which allow to equipment works in intended manner without change in significance.Different Power Quality problems are initiated or generated in the system or due to non linear load .They create disturbances in the system and malfunctioning in the system happened or system not works properly.To minimize that some Disturbances some IEEE and IEC standards their .With the use of this standards we can manufacture our equipment and in results of those our system minimized such disturbances and can work properly.This paper describred that different power quality problems and also the IEEE and IEC Standards which relate with Power Quality.