The output of a power system should be a sine wave or sinusoid with no dips, swells and harmonics. Due to the non-linear equipment connected to power systems, it creates harmonics that could be odd or even multiples of the fundamental power line frequency. Because of this, it’s important to measure power quality routinely to be able to correct these deviations immediately. Examples of widely used instruments are the Fluke power quality analyzer and the Dranetz powerquality analyzer. These tools have become the standard equipment in measuring power quality.
Non-linear equipment connected to the power system causes the line frequency to distort and generate harmonics. These can be harmful because harmonics make transformers generate excessive heat and reduce a motor’s power output. If there are too many harmonics, it can radiate electromagnetic waves or RF waves that can interfere with sensitive electronic equipment. Power analyzers measure the harmonics, dips and swells present on the power line. These analyzers help technicians properly compensate the power line and prevent future problems. The power line’s efficiency can be increased by correcting the distortion and minimizing harmonics.
If you are looking for power quality meters for rent,Protec has a line of power quality analyzers available.