Oscillography - GE G30 Instruction Manual

CHAPTER 5: SETTINGS
When enabled, this function monitors the pre-fault trigger. The pre-fault data are stored in the memory for prospective
creation of the fault report on the rising edge of the pre-fault trigger. The element waits for the fault trigger as long as the
pre-fault trigger is asserted, but not shorter than 1 second. When the fault trigger occurs, the fault data is stored and the
complete report is created. If the fault trigger does not occur within 1 second after the pre-fault trigger drops out, the
element resets and no record is created.
The user programmable record contains the following information: the user-programmed relay name, detailed firmware
revision (x.xx, for example) and relay model (G30), the date and time of trigger, the name of pre-fault trigger (a specific
FlexLogic operand), the name of fault trigger (a specific FlexLogic operand), the active setting group at pre-fault trigger, the
active setting group at fault trigger, pre-fault values of all programmed analog channels (one cycle before pre-fault trigger),
and fault values of all programmed analog channels (at the fault trigger).
Each fault report is stored as a file to a maximum capacity of ten files. An eleventh trigger overwrites the oldest file. The
EnerVista software is required to view all captured data. A FAULT RPT TRIG event is automatically created when the report
is triggered.
The relay includes two user-programmable fault reports to enable capture of two types of trips (for example, trip from
thermal protection with the report configured to include temperatures, and short-circuit trip with the report configured to
include voltages and currents). Both reports feed the same report file queue.
The last record is available as individual data items via communications protocols.
— Specifies the FlexLogic operand to capture the pre-fault data. The rising edge of this operand stores
PRE-FAULT 1 TRIGGER
one cycle-old data for subsequent reporting. The element waits for the fault trigger to actually create a record as long as
the operand selected as
PRE-FAULT 1 TRIGGER
record is created.
— Specifies the FlexLogic operand to capture the fault data. The rising edge of this operand stores the
FAULT 1 TRIGGER
data as fault data and results in a new report. The trigger (not the pre-fault trigger) controls the date and time of the
report.
to
FAULT REPORT 1 #1 FAULT REPORT 1 #32
true RMS, phase angle, frequency, temperature, and so on, to be stored when the report is created. Up to 32 channels can
be configured. Two reports are configurable to cope with variety of trip conditions and items of interest.

5.3.8 Oscillography

5.3.8.1 Menu
SETTINGS  PRODUCT SETUP  OSCILLOGRAPHY
 OSCILLOGRAPHY

G30 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL
FAULT 1 TRIGGER:

Off
FAULT REPORT 1 # 1:

Off

FAULT REPORT 1 #32:

Off
is "On." If the operand remains "Off" for 1 second, the element resets and no
— These settings specify an actual value such as voltage or current magnitude,
NUMBER OF RECORDS:

5
TRIGGER MODE:

Automatic Overwrite
TRIGGER POSITION:

50%
TRIGGER SOURCE:

Off
AC INPUT WAVEFORMS:

16 samples/cycle
Range: FlexLogic operand
Range: Off, any actual value analog parameter
Range: Off, any actual value analog parameter
Range: 1 to 64 in steps of 1
Range: Automatic Overwrite, Protected
Range: 0 to 100% in steps of 1
Range: FlexLogic operand
Range: Off; 8, 16, 32, 64 samples/cycle
PRODUCT SETUP
5
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