CHAPTER 12: FLICKER AND ANALYSIS FLICKER SETTING (EPM 9450 AND EPM 9650 OPTION A)
EPM 9450/9650 ADVANCED POWER QUALITY METERING SYSTEM – INSTRUCTION MANUAL 12–5
12.3 Flicker Setting (EPM 9450 and EPM 9650 option A)
You must set up several parameters to properly configure Flicker.
Note
If your EPM 9650 meter has Software Option B, see Section 12.9 for instructions on
configuring EN50160/IEC61000-4-30 Power Quality Compliance analysis, including Flicker.
1. Select the Profile icon from GE Communicator's Icon bar.
2. From the Device Profile screen, double-click Power Quality and Alarm
Settings > EN50160/IEC61000-4-30 Flicker. You will see the screen shown
below.
• Select the Frequency of operation. 50 Hz is the approved frequency
according to Flicker standards. A 60 Hz implementation is available and
can be selected.
Remember the voltage is normalized. For 50 Hz, the normalized voltage is 230 V and for 60
Hz, the normalized voltage is 120 V.
• Select a Short Term Test Time (Pst) time range from 1 to 10 minutes. The
standard measurement period is nominally 10 minutes.
• Select a Long Term Test Time (Plt) time range from 1 to 240 minutes. The
standard measurement is nominally 12 Pst periods (120 minutes). Plt time
must always be equal to or great than and a multiple of Pst time. This is
reflected in the available selections.
3. Click OK when you are finished.
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