In Figure 537, one phase is in dip and two phases have a swell indication. For the Phase
Mode Dip value "Three Phase", the activation occurs only when all the phases are active.
Furthermore, both swell and dip variation event detections take place simultaneously. In
case of a concurrent voltage dip and voltage swell, both SWELLCNT and DIPCNT are
incremented by one.
Also
Figure 537 shows that for the Phase Mode value "Three Phase", two different time
moment variation event swell detections take place and, consequently, DIPCNT is
incremented by one but SWELLCNT is totally incremented by two. Both in
Figure 536
and Figure 537 it is assumed that variation durations are sufficient for detections to take
place.
Section 10 1MAC059074-MB A
Power quality measurement functions
1050 615 series ANSI
Technical Manual
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