GE D90 Plus Instruction Manual page 538

DISTURBANCE RECORDER
528
Available Signals
Range: any FlexAnalog quantity
Default: Off
This setting specifies the FlexAnalog quantity to be recorded for the channel. The size of
each disturbance record depends in part on the number of parameters selected.
Parameters set to "Off" are ignored.
High Triggering
Range: Off, Trigger Only, Trigger/Re-Trigger, Re-Trigger Only
Default: Off
This setting selects the high triggering function for the analog channel. When set to
"Trigger Only" or "Trigger/Re-Trigger," the disturbance recorder initiates data capture
when the magnitude of the signal is greater than the value of the
The resulting record contains pre-fault and fault data. The channel must return to the
OFF state before it can generate a subsequent trigger.
When set to "Re-Trigger Only" or "Trigger/Re-Trigger," the disturbance recorder is re-
triggered when the magnitude of the signal is greater than the value of the
setting. The resulting record contains fault data only. A re-trigger is generated again at
the end of a disturbance record if the magnitude is greater than the
the number of re-triggers is less than the
Note that only phasor magnitudes, RMS magnitudes, frequency, and power can be used
as analog triggers.
High Pickup
Range: 0.0 to 1000000.0 in steps of 0.1
Default: 1000.0
This setting specifies the magnitude of the signal required to produce a trigger or re-
trigger. This setting is expressed in primary values. The units depend on the value of the
Available Signals setting.
Low Triggering
Range: Off, Trigger Only, Trigger/Re-Trigger, Re-Trigger Only
Default: Off
This setting selects the low triggering function for the analog channel. When set to
"Trigger Only" or "Trigger/Re-Trigger," the disturbance recorder initiates data capture
when the magnitude of the signal is less than the value of the
resulting record contains both pre-fault and fault data. The channel must return to the
off state before it can generate a subsequent trigger.
When set to "Trigger/Re-Trigger" or "Trigger Only," the disturbance recorder is re-
triggered when the magnitude of the signal is less than the value of the
setting. The resulting disturbance record contains fault data only. A re-trigger is
generated again at the end of the record if the magnitude is less than the
and if the number of re-triggers is less than the
Note that only phasor magnitudes, RMS magnitudes, frequency, and power can be used
as analog triggers.
Low Pickup
Range: 0.0 to 1000000.0 in steps of 0.1
Default: 1000.0
This setting specifies the magnitude of the signal required to produce a trigger or re-
trigger. This setting is expressed in primary values. The units depends on the value of the
setting.
Available Signals
CHAPTER 10: DIGITAL FAULT RECORDER
Maximum Re-Trigger
Maximum Re-Trigger
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
setting.
High Pickup
High Pickup
High Pickup and if
setting.
setting. The
Low Pickup
Low Pickup
Low Pickup
setting.