Recordings - AEMC PowerPad III 8336 User Manual

D (var):
DPF (cos Φ): displacement factor
FHL: harmonic loss factor
FK: factor K (K factor)
■ Phases: Options are 3L, N, and 4L.
■ < or >: Determines whether the alarm condition is triggered when the measurement exceeds or falls below the
threshold alarm setting.
■ Threshold: The value that must be reached to start an alarm. For ">" alarms, the value or higher must be reached. For
"<" alarms, the value or lower must be reached. To the right of this setting is a button that displays a drop-down menu
from which you can select the appropriate unit of measurement.
■ Duration: The alarm will only be recorded if the duration of the parameter meeting the threshold criteria exceeds the
duration. The minimum alarm duration can be in minutes or seconds. In the case of Vrms, Urms, or Arms not using
neutral current, this setting can also be in hundredths of a second. For Vrms, Urms, and Arms, it can be useful to set a
duration of 0 seconds. In that case an event as short as a half cycle can be detected (8 milliseconds at 60Hz). For all
other parameters, the minimum duration that can be detected is 1 second.
■ Hysteresis: This value for alarms is set to prevent multiple recordings of an event that goes above the threshold and a
certain percentage below it at times.
Example: Alarm threshold is 100V or higher, hysteresis is 1%. When the voltage goes up to 100V, the alarm condition starts.
When it goes back down to 99V, the alarm condition stops.
NOTE: You can configure alarms, recordings, Inrush, and transient searches while testing is in progress.

6.4.5 RECORDINGS

The Recordings tab shows the parameters for a recording session.
Power Quality Analyzer PowerPad
VΦ-Φ DC: DC phase-to phase
voltage
VΦ-Φ Hf: phase-to-phase
voltage harmonic factor
VΦ-Φ pk+: maximum phase-
to-phase voltage
VΦ-Φ pk-: minimum phase-to-
phase voltage
III Model 8336
®
VΦ-N THDr: harmonic distortion of
the phase-to-neutral voltage with
the total RMS value without DC as
reference
VΦ-N unb (2): phase-to-neutral
voltage unbalance
VA Hf: Apparent power harmonic
factor
Figure 6-11
101