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IM WT3001E-51EN
12.5 Executing the Normal Voltage Fluctuation and Flicker Measurement
• Initializing the Voltage Fluctuation and Flicker Measurement
• The initialization takes approximately 30 s.
• Rms voltage Un and voltage frequency Freq are updated every 2 s while the
initialization is in progress in the same manner as when the voltage fluctuation and
flicker measurement is reset.
• Keep the voltage of the power supply to be measured in steady-state condition
while the initialization is in progress.
• Rated Voltage Un and Voltage Frequency Freq
• If the assignment method of rated voltage is Auto, rms voltage at the start of
measurement is used as rated voltage Un. The measured data is calculated with
respect to rated voltage Un.
• If the assignment method of rated voltage is Set, the rated voltage setting is
displayed as Un(Set).
• Rated voltage Un and voltage frequency Freq are fixed to the first measured values
after the flicker measurement is started and are not updated.
• Switching the Element for Displaying the Measurement Data
You can select the element from below. The selectable items vary depending on the
installed elements.
Element1, Element2, Element3, and Element4
Note
If an element that is not being measured is assigned to a display target element, <OFF> is
displayed by the element number, and all measured data and judgement are displayed as
blank.
• Page Scrolling the Screen
A single page displays a list of measured data and judgements for 12 observation
periods. If the measurement count exceeds 12, the data is displayed on multiple
pages. In this case, you can page scroll to switch the displayed page. Page scroll is
possible only when the flicker measurement status is indicating Reset or Complete.
• Resetting the Voltage Fluctuation and Flicker Measurement
To initialize and restart the measurement, execute reset after the voltage fluctuation
and flicker measurement is complete and the flicker measurement status is indicating
Complete. You cannot initialize or start the measurement in the Complete status.
Reset the voltage fluctuation and flicker measurement to change the following
settings.
• Measurement conditions (chapter 4 in the User's Manual IM WT3001E-01EN)
• Measurement conditions of the voltage fluctuation and flicker measurement (section
12.3)
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Index
12-23
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