Rapid Voltage Change Log
The RVC Log (Data Rec 23) provides details of rapid voltage changes related to sag/swells
(power quality events). This data recorder is disabled by default.
Factory settings for this data recorder:
•
Log depth = 100 records
•
Interval = Triggered on demand
If enabled, it logs the following by default:
SS1 Delta Umax SS1 Delta Uss SS1 RVC Duration
For more information on how to enable the Rapid Voltage Change Log, see "Configuring
Advanced Power Quality" on page 200.
Sag/swell Log
The Sag/swell Log (Data Rec 5) provides details of power quality events.
Factory settings for this data recorder:
•
Log depth = 100 records
•
Interval = Triggered on demand
By default, it logs the following values:
SS1 DistDur SS1 DistV1Min SS1 DistV1Max SS1 DistV1Avg
SS1 DistV1Engy SS1 DistV2Min SS1 DistV2Max SS1 DistV2Avg
SS1 DistV2Engy SS1 DistV3Min SS1 DistV3Max SS1 DistV3Avg
SS1 DistV3Engy SS1 DistNominal SS1 Swell Lim SS1 Sag Lim
For more information on how to configure sag/swell logging, see "Configuring sag and swell
logging" on page 196.
Sg/Sw HS Log
The Sg/Sw HS Log (Data Rec 6) captures high-speed (half-cycle) voltage and current data that
includes pre-event and post-event records related to the sag/swell event. This data recorder is
disabled by default.
If enabled, it logs the following by default:
HS Vln a HS Vll ab HS I a HS Freq
HS Vln b HS Vll bc HS I b
PQA1 Vavg Sliding
Ref Voltage
HS Vln c HS Vll ca HS I c
For more information on how to enable the Sg/Sw HS Log, see "Configuring sag and swell
logging" on page 196.
9810 series - User manual Logging
7EN05-0390-08 222
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