Oscillography - GE B90 Instruction Manual

CHAPTER 5: SETTINGS
— 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.

5.3.10 Oscillography

5.3.10.1 Menu
SETTINGS  PRODUCT SETUP  OSCILLOGRAPHY
 OSCILLOGRAPHY

Oscillography records contain waveforms captured at the sampling rate as well as other relay data at the point of trigger.
Oscillography records are triggered by a programmable FlexLogic operand. Multiple oscillography records can be captured
simultaneously.
The is selectable, but the number of cycles captured in a single record varies considerably based on
NUMBER OF RECORDS
other factors, such as sample rate and the number of operational modules. There is a fixed amount of data storage for
oscillography; the more data captured, the less the number of cycles captured per record. See the
RECORDS  OSCILLOGRAPHY
configurations with corresponding cycles/record. The minimum number of oscillographic records is three.
B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
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:

15
TRIGGER MODE:

Automatic Overwrite
TRIGGER POSITION:

50%
TRIGGER SOURCE:

Off
AC INPUT WAVEFORMS:

16 samples/cycle
 DIGITAL CHANNELS


 ANALOG CHANNELS


menu to view the number of cycles captured per record. The following table provides sample
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
See below
See below
ACTUAL VALUES 
PRODUCT SETUP
5
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