SATEC SA300 ezPAC Operation Manual - Manual (Page 94)

Chapter 8 Configuring Recorders Configuring the IEEE 1159 Power Quality Recorder
94 SA300 Substation Automation Unit
The available PQ recorder options are shown in the following table:
Option Range Default Description
Thresholds
Threshold, % 0-200.0% Defines the operating threshold for the PQ trigger in
percent of the nominal (reference) value
Hysteresis, % 0-50.0% 5.0 Defines the hysteresis for PQ trigger in percent of the
threshold
Waveform Log
On Start Checked
Unchecked Checked Enables waveform log when the PQ event starts
On End Checked
Unchecked Unchecked Enables waveform log when the PQ event ends
Log No. 1-8 7 Specifies the waveform log file used for waveform
recording on the PQ event
Data/RMS Plot
Enabled Checked
Unchecked
Unchecked Enables concurrent RMS trace plot to the data log file
while the PQ event continues
1/2-cyc 0-10,000 cycles 30 Duration of the 1/2-cycle data trace
0.2-sec 0-10,000 seconds 3 Duration of the 0.2-second data trace
3-sec 0-10,000 minutes 3 Duration of the 3-second data trace
10-min 0-10,000 hours 0 Duration of the 10-minute data trace
Before, Cycles 0-20 cycles 2 The number of cycles to be recorded prior to the event
After, Cycles 0-20 cycles 2 The number of cycles to be recorded after the event
Log No. 14 Specifies the data log file used for data recording on
the PQ event
The Sag, Swell and Interruption triggers use the same waveform and data log
options. If you change one of them, the others are automatically adjusted to the same
setting.
The waveform log option allows recording waveforms both at the start and the end of
a PQ event. Since the voltage variations may last from some seconds to minutes, this
allows capturing and analyzing the voltage transitions using short time waveform
recording at the start and the end of the voltage sag or swell.
The data log option allows concurrent recording of the RMS data at a variable rate
depending on the PQ event duration. To reduce the memory consumption for
recording long duration events, the PQ recorder uses different time envelopes
(aggregation intervals) for data tracing and changes the recording rate accordingly.