GE D90 Plus Instruction Manual page 529

CHAPTER 10: DIGITAL FAULT RECORDER
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
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 transient recorder will initiate data capture
when the magnitude of the signal is greater than the value of the
The resulting record will contain 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 transient recorder will be re-
triggered when the magnitude of the signal is greater than the value of the
setting. The resulting record will contain fault data only. A re-trigger is again generated
at the end of a transient 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 may 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 are dependent on the value
of the setting.
Available Signal
Low Triggering
Range: Enabled, Disabled
Default: Disabled
This setting selects the low triggering function for the analog channel. When set to
"Trigger Only" or "Trigger/Re-Trigger", the transient recorder will initiate data capture
when the magnitude of the signal is less than the value of the
resulting record will contain 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 transient recorder will be re-
triggered when the magnitude of the signal is less than the value of the
setting. The resulting transient record will contain 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 may 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 are dependent on the value
of the Available Signal setting.
Block Trigger
Range: any FlexLogic™ operand or shared logic operand
Default: OFF
When the operand assigned to this setting is asserted, all high and low triggers to the
specified analog channel are inhibited.
TRANSIENT RECORDER
High Pickup
setting.
Maximum Re-Trigger
Low Pickup
Maximum Re-Trigger
setting.
High Pickup
and if
High Pickup
setting. The
Low Pickup
Low Pickup
setting.
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