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Power Quality Logger
Methods of Logging
29
Technical Specifications” on page 46.
Voltage Variations
The interval value of the voltage is defined as the mean value of the RMS
values over the interval length defined in PQ Log.
Averaging intervals can be set in PQ Log to the following:
• 1, 3, 5, 10, or 30 seconds
• 1, 5, 10, 15, or 60 minutes
1 Interval
Measuring period
Time
V
N
egb016.eps
Figure 13. Measuring Voltage Variations
Note
For logging in Wye configuration using logging function A, the
phase-phase voltages are measured and displayed separately from the
logging of the phase-neutral voltages.
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