Power quality logging
Sags and swells
Your meter monitors your power system’s voltage and current for sags and swells (INCITS
(CBEMA) Type 2 and Type 3 disturbances).
When sag/swell limits are defined and alarming is enabled, the meter reports the disturbance’s
magnitude and duration, and logs data and waveform records associated with the disturbance.
Configuring sag and swell logging
Use ION Setup to configure your meter to log data and waveform records related to sag/swell
events, and to export the waveform data to COMTRADE files.
There are two data recorders for logging sag/swell related data:
•
Sag/Swell Log (Data Rec 5) records data for plotting the ITIC (CBEMA) curve.
•
Sg/Sw HS Log (Data Rec 6) records voltage and current data from the High-Speed Power
Meter module.
To configure the Sag/Swell Log, Sg/Sw HS Log, Sag/Swell Waveform Log, and Sag/Swell
COMTRADE files:
1. Start ION Setup.
2. Open the Setup Assistant for your meter.
3. Click Power Quality > Sag/Swell Logging.
4. Select the data log and click Edit.
5. Enter the meter password, if prompted.
The Sag/Swell Logging Wizard appears.
6. The Device setting verification screen shows results of the meter configuration check for
possible errors related to sag/swell monitoring and reporting. Click Fix to view details or click
Next to ignore the results and proceed to the next screen.
7. The Disturbance Logging Setup screen displays the Log Depth setting for the Sag/Swell
Log (Data Rec 5). (Optional) Change the maximum number of records to store in this log.
8. Click Next.
9. The High Speed Recording screen displays the settings for the high-speed Sag/Swell data
recorder (Sg/Sw HS Log - Data Rec 6). Configure these settings for the meter to perform
burst data logging.
Parameter Description Notes
Enable Burst Data
Logging
Select or clear this check box to
turn burst data logging on or off.
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9810 series - User manual Power quality
7EN05-0390-08 196
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