SATEC PM180 Operation Manual - Manual (Page 107)

‎Chapter 8 Configuring Recorders Configuring the Fault Recorder
PM180 Substation Automation Unit 105
Option Range Default Description
Thresholds
Threshold, % 0-200.0% Defines the operating threshold for the fault trigger in
percent of the nominal (reference) value
Threshold,
secondary Shows the setup value in secondary units for the
selected operating threshold
Hysteresis, % 0-50.0% 5.0 Defines the hysteresis for fault trigger in percent of the
threshold
Trigger Enabled Checked
Unchecked
Checked Links the fault trigger to the Fault Recorder. If the box
is leaved unchecked, the Fault Recorder does not
respond to the trigger.
Waveform Log
On Start Checked
Unchecked
Checked Enables waveform log when the fault event starts
On End Checked
Unchecked
Unchecked Enables waveform log when the fault event ends
Log No. 1-8 7 Specifies the waveform log file used for waveform
recording on the fault event
1/2-cycle RMS Plot
Log Enabled Checked
Unchecked
Unchecked Enables concurrent RMS trace plot to the data log file
while the fault event continues
Max. Duration 0-10,000 cycles 100 Maximum duration of the 1/2-cycle data trend log. The
logging is stopped automatically when either a fault
event ends or the specified number of cycles has been
recorded.
Before, Cycles 0-20 cycles 4 The number of cycles to be recorded prior to the event
After, Cycles 0-20 cycles 4 The number of cycles to be recorded after the event
Log No. 13 13 Specifies the data log file used for data recording on
the fault event
To enable or disable the Fault recorder in your device:
1. Check or uncheck the “Recorder Enabled”
checkbox.
2. Send the new setting to the device.
In IEEE 1159 versions, current and voltage faults detected by the Fault recorder are
normally recorded into the IEEE 1159 Power Quality log file. To disable this option:
1. Uncheck the “Record to PQ Log” checkbox.
2. Send the new setting to the device.
Configuring Analog Triggers
Voltage and current thresholds are normally specified as a percent of a nominal
(reference) voltage and current. The voltage reference is the line-to-neutral PT
secondary voltage for the 4LN3, 3LN3 and 3BLN3 wiring configurations, and the line-
to-line PT secondary voltage for other wiring configurations. The reference value for
current triggers is the CT secondary current rating for the extended range current
inputs. See
Basic Device Setup in Chapter 7 for information on specifying voltage
and current ratings in your device.
To make easier specifying thresholds for voltage and current triggers, PAS also
shows you threshold values in secondary units that match the percentage you
selected for the triggers. To update the thresholds in secondary units, type the
threshold for a trigger in percent, and then press Enter or click elsewhere on the
Fault Recorder setup tab.
The picture above shows the factory set Fault recorder options. Notice that the
Overcurrent trigger can be used along with the second Undervoltage trigger
combined by logical AND. If you wish to use the only Overcurrent trigger, disable
(uncheck) the second Undervoltage trigger.
The Zero-Sequence Voltage trigger and the Voltage Unbalance trigger are
disabled by default. Both are very sensitive to phase unbalances. If you want to use