Tolerance analysis of flicker Pst short term perceptibility assessment for one minute observation time

This paper present the tolerance analysis and evaluation of flicker severity Pst short term perceptibility assessment for 1 minute observation time based on IEC61000-4-15 flickermeter standard. The evaluation approach takes a complete range of standard rectangular modulated test waveform set for evaluation of both 10 minutes and the 1 minute observation time. The tolerance is then derived from the error evaluated from Pst of 1 and 10 minutes observation time. The proposed 20% tolerance is then verified with actual recorded waveform from the field. The result shows that the proposed tolerance is generally valid for 1 minute Pst assessment with one conditional limitation. The proposed tolerance serves as a supplementary guide for 1 minute Pst assessment to compliment the 10 minutes Pst assessment.