Harmonic Analysis Data

When Harmonic Analysis is enabled, WSOS displays the measured harmonic data on the Harmonics page in a bar chart format as shown in the figure below.

Six quantities as selected by the tick boxes on the right of the Harmonic Data chart are displayed.

This display represents voltage and current waveforms rich in odd harmonics.

No alarm thresholds were configured for odd harmonics 5, 9 and 13 which are displayed in green to indicate that they are not in an alarm state.

The 3^rd harmonics for the three selected voltages are also displayed in green because they have not exceeded their configured alarm threshold setting of 4%.

All other 3^rd, 7^th, 13^th and 15^th harmonics as well as THD have exceeded their alarm thresholds and are in an alarm state. The bars representing these harmonics are displayed in the color associated with their particular quantity as indicated next to their tick boxes.