ABB RELION 620 Series Technical Manual page 705

1MAC504801-IB E
620 series ANSI
Technical Manual
If the Percentile unbalance, Trigger mode or Obs period duration settings change when
OBS_PR_ACT is active, OBS_PR_ACT deactivates immediately.
OBS_PR_ACT
7 days
GUID-A70EC355-E810-4A4A-8368-97B7AEF9F65B V1 EN
Figure 354: Periods for statistics recorder with different trigger modes and period
settings
The BLOCK input blocks the OBS_PR_ACT output, which then disables the maximum
value calculation of the Statistics recorder module. If the trigger mode is selected
"Periodic" or "Continuous" and the blocking is deactivated before the next observation
period is due to start, the scheduled period starts normally.
Power quality measurement functions
Trigger mode
Obs period selection – 4 (7 days)
Trigger mode
Obs period selection – 4 (7 days)
Trigger mode
Obs period selection – 3 (1 day)
Trigger mode
Obs period selection – 3 (1 day)
Section 8
- Single
TIme
- Continuous
TIme
- Continuous
TIme
- Periodic
TIme
699