Monthly Archives: April 2012

Oversampling (resampling) data in harmonic data processing

When using a rectangular window, it is important to synchronize the measurement window accurately with the power system frequency to achieve integer multiple of periods in analysed time series (i.e. window period is and integer multiple of analysed frequency component natural period). For … Continue reading

Posted in Harmonics | Tagged , , , | Leave a comment

Commercial power quality meters

The use of a rectangular window requires that the measurement window is synchronized with the actual power system frequency, hence the use of a 10-cycle window instead of a window of exactly  200 ms. The IEC standard [1] requires that 10 … Continue reading

Posted in Harmonics | Tagged , | Leave a comment