GE D90 Plus Instruction Manual page 529

CHAPTER 10: DIGITAL FAULT RECORDER
Transient recorder analog channels
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
Up to 16 analog channels can be assigned to the transient recorder. Each channel can be
configured individually by clicking the analog channel Select button in the transient
recorder window to open the transient recorder analog channels window.
Figure 451: Analog channel configuration settings
The following settings are available for each analog channel.
Available Signal
Range: any FlexAnalog quantity
Default: as shown above
This setting selects the FlexAnalog value to be recorded for the channel. The size of each
record depends in part on the number of parameters selected. Channels 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 transient recorder initiates data capture when
the magnitude of the signal is greater than the value of 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 transient 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 again generated at
the end of a transient record if the magnitude is greater than 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
setting.
Available Signal
High Pickup
setting.
Maximum Re-Trigger
TRANSIENT RECORDER
setting. The
High Pickup
and if the
High Pickup
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